Comparison
Compare stud-finder models on the same evidence
Compare wall detectors by the question they answer, not by a single large number on a package. First make a short row for each exact model and package; then fill each column from that model’s own instructions. If the manual does not establish a value, mark it unknown instead of borrowing the figure from a related model.
The reviewed library contains 101 current-reference models and 123 model records overall. Including earlier models yields 122 eligible finder entries; the recalled FatMax 400/77-730 remains a technical reference but is withheld from matches because the unit date code is unknown. These figures describe this reviewed library, not seller inventory. A maker-stated maximum is a screening boundary, not a reading prediction or a safe-drilling guarantee. Open the exact 1.5-inch threshold · Open the exact 1.6-inch threshold.
Earlier-model scope does not raise a current product's stated depth limit, and an older model must still meet the selected numeric threshold on its own supported plan. The earlier-inclusive numeric set has 101 entries at 0.7 inches, 69 at 1.5 inches, 11 at 1.6 inches and two at 2.5 inches; the last two boundaries illustrate how a tenths-step can narrow a shortlist. Compare the earlier-inclusive 1.5-inch boundary or raise it to 1.6 inches.
The earlier-model switch expands the documented reference set but does not make every earlier model suitable for every wall. With drywall selected, earlier-inclusive scope returns 122 eligible configurations versus 101 current-reference models; the recalled FatMax 400 stays withheld pending an exact unit date code. Open the exact earlier-inclusive drywall condition.
Make the surface and target the first columns
Write down the wall assembly you expect to scan and the hidden target you need to locate. A stud sensor, a metal scan, and a live-wire indicator are different capabilities even when they share one housing. Record whether the maker documents drywall, plaster, metal mesh, tile or other exact construction. “Wall scanner” can include several target modes, so compare the mode—not only the product family name.
Compare indication style separately from target identity
An edge signal, a center cue, a wide LED pattern, a signal-strength display, an audible alert and a dedicated metal mode answer different layout questions. Record which indications the exact model supplies and whether the manual says they refer to the stud’s edges, its center, or a broader target signal. No indicator on its own proves that the object is wood or that it can hold a fastener.
Keep depth claims in context
For each relevant mode, record the manufacturer’s maximum depth, target material and stated conditions. Do not compare a maximum in a dedicated metal mode with a stud-scan depth, and do not assume a value applies through every wall finish. Texture, moisture, reinforcement and construction can alter a reading. A number is useful only alongside the manual’s limits.
Compare the actual routine and package
Check calibration requirements, scan direction, whether the power button must remain held, batteries, included accessories, and the exact model suffix. Package contents can change the practical cost or setup without changing the underlying sensor; a case or picture-hanging kit should remain a distinct package record. Verify the retailer’s exact model and supplied equipment rather than trusting a photo of a neighboring version.
One documented pair: Franklin X2100 and M210
The official X2100 and M210 pages both list 13 sensors, 21 LEDs, a stated 1.7-inch maximum, a bubble level, a live-wire meter and a pencil caddy. The X2100 page specifically says its middle LED turns green at the stud center; the M210 page uses a qualified “in certain models” center-light description. That is a useful difference in model-specific documentation, but the sources do not establish a performance advantage or a deeper scan for the X2100. Compare the X2100 assessment with the M210 assessment, and consider the green cue only if it matters to your marking routine.
A different mode plan: Franklin ProSensor MAX
The MAX page also lists 13 sensors, but calls them larger; it lists 35 LEDs, two surface modes and a 2.5-inch maximum. Its current manual narrows the depth statement with a separate 1.75-inch figure for wood studs. Mode 1 is specified for a single sheetrock layer, while Mode 2 is named for thicker and layered sheetrock, a sheetrock overlay, plywood or MDF, lath and plaster, and large tile. Metal mesh may stop plaster detection, and flooring, roofing, complex tile and exterior materials are not guaranteed. The manual also warns that Mode 2 may report the densest or nearest of multiple objects rather than identifying which is a stud. These are meaningful documented differences from the M210/X2100's 21 LEDs, 1.7-inch claims and explicit live-wire meters; they are not proof of a universal accuracy advantage. Read the MAX assessment beside the exact model page and MAX.E (09/25) manual.
Use a fair conclusion
If one model has more documented indicators, that may make its signal easier to interpret for a particular job; it does not automatically make it more accurate in every wall. A useful comparison states the need, the evidence that fits it, the unresolved fields and the downside. The reviewed library includes 101 current-reference models and 22 earlier model records; one recalled FatMax 400/77-730 record is retained for its technical review but not included in buying matches, leaving 122 eligible entries when earlier models are included. The C.H. Hanson pink 3046 is a covered finish variant of 3040 rather than an additional matcher product. The 3047 is separate because its exact finder-plus-eight-hanger package is materially different. The Klein MSF100 single and MSF1002 two-pack are also individually resolved. No category-wide winner is established. These are source-based assessments rather than hands-on tests. Distinct Zircon configurations include Pro LCD, i65 OneStep, the Picture Hanging Kit bundle, SuperScan ID, MultiScanner A250, MultiScanner x85, SuperScan K2 and SuperScan K3. Each model and package remains separate.
Read an exact limit, not a family average
M5, M10 and M10S state one-inch maxima; M50, M70, M90, M150, M155, T6, T9, X700, X990 and X995 each state a 1.5-inch general or drywall limit; 710, 710+, T11 and X1100 state 1.6 inches. M210, T13 and X2100 state 1.7 inches, while MAX has a separate Mode 2 plan with a 2.5-inch overall claim and a 1.75-inch wood-stud figure. A200, A250c, A100, A150 and StudSensor Center each distinguish a 0.75-inch StudScan plan from a separate 1.5-inch DeepScan stud plan; A250c's metal-target depths are not stud depths. The standard StudSensor and StudSensor Basic each state a 0.75-inch edge-scan ceiling, while neither single-unit StudScout nor the 2-Pack publishes numeric depth. T9 has a distinct conditional 1.6-inch lath-and-plaster statement in its shared manual, which does not replace the 1.5-inch general product-page maximum or apply to drywall. One tenth of an inch can change a threshold shortlist, but none of these figures guarantees detection through the actual wall. Compare the exact assessments and use a numeric threshold only when it is a real requirement.
Use numeric depth as a screening boundary
Numeric depth screens one supported operating plan's maker-stated ceiling, not a promised wall reading. The original Walabot DIY's model-labelled manual gives a general four-inch reach for named targets including studs, but Walabot separately says the app cannot show object depth; its numeric plan is a comparison ceiling, not a depth readout. The DIY Plus and Plus X have no verified stud-depth maximum in the reviewed maker sources and therefore fail positive numeric requirements. Compare original DIY, DIY Plus and Plus X, or keep an earlier-inclusive threshold in the finder: 0.7 inches and 2.5 inches. Klein ESF050 and ESF200 each state a 3/4-inch wood-stud maximum, so the 0.75-inch plans pass the 0.7 filter setting but fail 0.8; the ESF200's separate 1.5-inch metal and 2-inch AC figures are not stud depth. Klein ESF100 and ESF150LL state 1.5-inch stud ceilings, meet equality at 1.5, and fall below the next 1.6-inch step; the ESF150LL lasers do not extend scanning depth. Bosch EXPERT D-tect18V-200-17C and D-TECT200C each list 38 mm for wooden beams in dry walls (about 1.496 inches), so each clears the 1.4 step but not 1.5. The newer GMS120-27 lists 30 mm (about 1.1811 inches) for its qualified wood-beam arrangement, so it clears 1.1 but not 1.2; the older GMS 120 lists 1½ inches, and D-TECT120 lists 2.36 inches in Drywall mode. Their larger metal, live-wire or concrete-object claims are separate. DeepScan edge caveats, center-only plans and conditional plaster figures remain independent conditions rather than one product-family depth.
The numeric screen advances in tenths from 0.7 to 2.5 inches. These manual-specific boundaries show why a decimal conversion matters: both 38 mm Bosch beam limits fall below 1.5, while GMS120-27’s 30 mm limit falls between the 1.1 and 1.2 settings. The older GMS 120 passes equality at 1.5 and falls out at 1.6; D-TECT120 passes 2.3 and falls out at 2.4 because its Drywall-mode maximum is 2.36 inches. The numeric-only question does not demand edge or center cues, so each model’s full depth ceiling remains separate from the cue filters. A metal-scan or concrete-mode value never replaces its stud-mode figure, and MAX's overall claim does not replace its wood-stud qualification. See D-TECT200C and GMS120-27 for the exact plans and compare the 1.2-inch numeric-only threshold.
Exact new-mode assessments: SuperScan K4, StudSensor 70 and MultiScanner HD900 OneStep. Also compare i520 review, HD900c review and K1 review.
The earlier StudMark+ sources state no numeric stud-detection depth; the bubble vial is a leveling aid, so it cannot meet the finder’s 0.7–2.5-inch minimum-depth question. The tool stays excluded at every offered threshold because no exact-model depth ceiling is documented; its bubble vial does not change that unknown. Read the StudMark+ assessment and keep the earlier-model condition with the numeric filter at 0.7 inches, 0.8 inches or the 2.5-inch upper endpoint.
The Original, Pro and Spot sources reviewed for this edition publish no numeric stud-detection-depth maximum, so they cannot meet the numeric matcher's 0.7-inch minimum (or any higher step through 2.5 inches). The Pro package's illustrated 24-inch scan section and ruler graduations are not sensing depth; Spot's larger-magnet description is qualitative, and neither is converted into a number. See each model's 000107, Pro and Spot review; keep the lowest 0.7-inch threshold selected in the same finder, then compare its next boundary at 0.8 inches.
The Kreg KMM1000 and KMM1000LZ exact Q&A both state an explicit maximum fastener burial of 0.150 inch from the wall surface. That value is below the numeric finder's 0.7-inch minimum, so both models are excluded at every offered threshold from 0.7 to 2.5 inches, including equality at 0.7; the LZ page's separate roughly 3/8-inch wording is not identified as a maximum and is not used to raise its bound. Read the KMM1000 depth evidence and KMM1000LZ ambiguity note; compare the numeric-only 0.7-inch endpoint, the next tenth, or the top of the slider.
CRAFTSMAN's stated ceilings are model- and material-specific: CMHT77633 and CMHT77620 stop at 0.75 inch; CMHT77621 states a one-inch wood-stud limit and a separate 1.5-inch metal-stud limit. The limits are screening boundaries, not predicted readings through a particular wall. See the edge-only 77633, center-finding 77620 and material-specific 77621 assessments.
At 0.7 inches, 83 numeric-only configurations match; CMHT77633, CMHT77620 and CMHT77621 all meet their documented drywall stud plans. Read CMHT77633, CMHT77620 and CMHT77621, then open the exact numeric-only 0.7-inch result. Other reviewed plans in this result include DEWALT DW0100, DW0150, Zircon MultiScanner 340, 440 and 540, plus L20, L30, L70 and WM5.
At a 0.8-inch minimum, 66 numeric-only configurations remain; among these CRAFTSMAN models, only CMHT77621 qualifies, through its 1.5-inch metal-stud plan, because the other two stop at 0.75 inch. Check the 77621 material-specific ceiling and keep 0.8 inches selected in the numeric-only finder. Other reviewed plans in this result include DEWALT DW0150, Zircon MultiScanner 340, 440 and 540, plus L40, L50 and L70 OneStep.
At a 1.0-inch minimum, 66 numeric-only configurations remain; among these CRAFTSMAN models, only CMHT77621 qualifies, meeting equality on its one-inch wood-stud plan. Its separate metal plan extends to 1.5 inches. Read the exact material limits and open the numeric-only one-inch result. Other reviewed plans in this result include DEWALT DW0150, Zircon MultiScanner 340, 440 and 540, plus L40, L50 and L70 OneStep.
At a 1.1-inch minimum, 61 numeric-only configurations remain; CMHT77621 qualifies only through its metal-stud plan because its wood-stud plan ends at one inch. Check the 77621's separate wood and metal ceilings and keep 1.1 inches selected. Other reviewed plans in this result include DEWALT DW0150, Zircon MultiScanner 340, 440 and 540, plus L40, L50 and L70 OneStep.
At a 1.2-inch minimum, 60 numeric-only configurations remain; CMHT77621 qualifies only through its 1.5-inch metal-stud plan, not its one-inch wood-stud plan. Read the model-specific limits and open the numeric-only 1.2-inch result. Other reviewed plans in this result include DEWALT DW0150, Zircon MultiScanner 340, 440 and 540, plus L40, L50 and L70 OneStep.
At a 1.4-inch minimum, 60 numeric-only configurations remain; CMHT77621 qualifies only through its 1.5-inch metal-stud plan, not its one-inch wood-stud plan. Read the model-specific limits and open the numeric-only 1.4-inch result. Other reviewed plans in this result include DEWALT DW0150, Zircon MultiScanner 340, 440 and 540, plus L40, L50 and L70 OneStep.
At equality at 1.5 inches, 58 numeric-only configurations remain; CMHT77621 still qualifies for metal studs, not wood. At 1.6 inches, the CRAFTSMAN trio drops below the threshold. These maker-stated maxima do not predict a reading through a particular wall. Check the 77621 material distinction, then open the 1.5-inch result. Other reviewed plans in this result include DEWALT DW0150, Zircon MultiScanner 340, 440 and 540, plus L40, L50 and L70 OneStep.
At a 1.6-inch minimum, 10 numeric-only configurations remain; none of the three CRAFTSMAN models reaches this threshold because their highest documented stud ceiling is 1.5 inches. Review the 77621's metal-stud ceiling, compare the still-matching Bosch D-TECT120, and open the numeric-only 1.6-inch finder result.
RYOBI ESF5002 passes at equality at 1.5 inches through its manufacturer-stated maximum wall-thickness plan and drops at 1.6. The product page says this wall-thickness limit is for identifying wood and metal studs; it is not a prediction for a particular wall. The exact manual's separate 1.5-inch typical stud width is not its depth value. Read the ESF5002 assessment and keep the 1.5-inch threshold or compare the next slider value.
RYOBI ESF5002 remains in the numeric-only match set at every 0.1-inch slider step from 0.7 through 1.5 inches, including equality at 1.5, and drops at 1.6. This comparison uses the product page's 1.5-inch maximum wall-thickness statement; the manual's separate typical stud width is not detection depth. Read the model-specific limits and preserve the numeric-only condition at 0.7 inches, 0.8 inches, 1.0 inch, 1.1 inches, 1.2 inches, 1.4 inches, 1.5 inches or 1.6 inches. The Calculated Industries StudMark 7310 has no numeric depth in the exact maker sources, so its unknown value does not satisfy even the minimum 0.7-inch request. Read the 7310's depth note and keep the 0.7-inch numeric-only condition selected.
For dry interior drywall at a 0.7-inch minimum, the StudMark 7310 still fails the numeric requirement because the maker gives no depth figure; a drywall match alone cannot turn an unknown into a supported boundary. Read the 7310's unknown-depth limitation, compare a model with a documented limit such as RYOBI ESF5002, and keep both drywall and 0.7 inches selected together.
The exact maker sources state no StudMark 7310 stud-depth number, so the unknown does not meet either endpoint of the 0.7–2.5-inch slider, or an intermediate positive minimum. Read the depth-source limitation and compare the numeric-only endpoints at 0.7 inches and 2.5 inches; neither endpoint converts missing evidence into a numeric match.
Including earlier models does not change the 7310's unknown numeric depth: at 1.5 inches it remains excluded, even though it stays in the current-reference portion of the expanded catalogue. The earlier STANLEY S200 is also excluded at 1.5 inches because its documented drywall stud ceiling is 0.75 inch. Compare the exact model assessment, the S200 manual-based assessment and the RYOBI ESF5002's stated comparison limit, then keep earlier products and the 1.5-inch minimum selected together.
For the five Zircon L-series models, the published depth ceiling is mode-specific. L20 and L30 have shallow 0.75-inch plans, so they pass 0.7 but not 0.8. L40 and L50 have separate 1.5-inch edge DeepScan plans; L70's 1.5-inch DeepScan is center-oriented, unlike its shallow center-and-edge StudScan. The deeper three meet equality at 1.5 and all five fall below a 1.6-inch minimum; none of those ceilings guarantees a reading through a particular wall. Read the exact L20, L30, L40, L50 and L70 assessments. 0.7 inches · 0.8 inches · 1.0 inch · 1.1 inches · 1.2 inches · 1.4 inches · 1.5 inches · 1.6 inches.
In the current-only numeric finder, 83 configurations meet 0.7 inches; 66 meet 0.8 and 1.0; 61 meet 1.1; 60 meet 1.2 and 1.4; 58 meet 1.5; and 10 meet 1.6. These are matches to documented model ceilings, not guaranteed wall readings. CRAFTSMAN CMHT77633 and CMHT77620 stop at 0.75 inch, while CMHT77621 has separate one-inch wood and 1.5-inch metal limits. DW0100 stops at 0.75 inch on either material; DW0150 has a one-inch wood and 1.5-inch metal limit. Zircon L20/L30 also stop at 0.75 inch; L40/L50 have separate 1.5-inch edge DeepScan plans, while L70's deeper plan is center-oriented. See the CMHT77633, CMHT77620, CMHT77621, DW0100, DW0150, L20, L30, L40, L50 and L70 OneStep assessments. Use the threshold links above to keep the exact numeric condition selected.
SuperScan depth boundaries by mode
DEWALT DW0100 states a 0.75-inch stud limit for wood and metal; DW0150 separates a one-inch wood limit from a 1.5-inch metal-stud limit. Thus these models clear 0.7, separate at the 0.8 step, and only DW0150's metal arrangement reaches equality at 1.5. Their maxima are comparison ceilings, not wall-specific guarantees. Keep the same numeric condition selected at 0.7, 0.8, 1.0, 1.1, 1.2, 1.4, 1.5 or 1.6 inches.
The current numeric-only screen includes 101 current-reference models, but each exact arrangement keeps its own depth ceiling. MultiScanner 540, 440 and 340 have separate 0.75-inch StudScan and 1.5-inch DeepScan stud plans; StudSensor WM5 has only a 0.75-inch StudScan plan. All four meet 0.7; only the three MultiScanners meet 0.8 through equality at 1.5; all four fall below a 1.6-inch minimum. Wire-warning or AC-scan distances are not stud depth, and a maximum does not predict a particular wall reading. Compare the 540, 440, 340 and WM5 mode-specific assessments.
At the 0.7-inch lower endpoint, the MultiScanner 540, 440, 340 and WM5 each qualify through a shallow 0.75-inch StudScan plan. Their 1.5-inch ceilings belong to separate modes where documented; open the same 0.7-inch finder result.
At 0.8 inches, 66 numeric-only configurations remain. WM5's only plan stops at 0.75 inch, so it falls out at this next slider step; 540, 440 and 340 continue through their separate 1.5-inch DeepScan plans. Keep the 0.8-inch threshold selected.
At 1.0 inch, 66 current-reference configurations pass the numeric-only filter. MultiScanner 540, 440 and 340 remain eligible through DeepScan; WM5 does not. The shallow StudScan ceiling remains 0.75 inch for each MultiScanner. Open the exact one-inch finder result.
At 1.1 inches, 61 configurations remain; the three MultiScanners qualify through their separate 1.5-inch DeepScan stud plans, while WM5 is below its one-mode limit. Preserve 1.1 inches in the finder.
At 1.2 inches, 60 current-reference configurations match. MultiScanner 540, 440 and 340 remain through DeepScan; no such 1.2-inch plan is documented for WM5. Open the exact 1.2-inch numeric result.
At 1.4 inches, 60 numeric-only configurations remain. At this threshold all three MultiScanners qualify through DeepScan, while WM5 does not; the three deeper plans meet equality at 1.5 and drop at 1.6. Keep the 1.4-inch minimum selected.
At equality at 1.5 inches, 58 current-reference plans remain. MultiScanner 540, 440 and 340 pass only through DeepScan; their 0.75-inch StudScan plans do not meet this depth. WM5 remains excluded. Open the exact 1.5-inch numeric finder result.
At 1.6 inches, ten configurations remain. All three MultiScanners drop because their distinct DeepScan stud ceilings are 1.5 inches; WM5 had already dropped at 0.8. WireWarning, AC Scan and Metal Scan do not extend any of those stud-depth limits. Compare the 540, 440 and 340 limits with D-TECT120, then open the same 1.6-inch finder threshold.
At 1.7 inches, five reviewed plans remain: Franklin M210, T13 and X2100, MAX Mode 2, and Bosch D-TECT120 in its separate 60 mm Drywall plan. The MultiScanner 340, 440 and 540 and StudSensor WM5 plans do not reach this slider step. Keep the exact 1.7-inch minimum.
At 1.8 inches, two reviewed configurations remain: Franklin MAX Mode 2 and Bosch D-TECT120 Drywall mode at 60 mm (2.36 inches). The 340, 440, 540 and WM5 ceilings are lower. Open the same 1.8-inch result.
At a 2.3-inch numeric minimum, two reviewed plans remain: D-TECT120's 60 mm (2.36-inch) Drywall mode and Franklin MAX Mode 2. The 340, 440, 540 and WM5 stud modes remain below this threshold. Preserve the 2.3-inch condition.
At a 2.4-inch minimum, only Franklin MAX Mode 2 remains in the current numeric-only result; Bosch D-TECT120's 2.36-inch Drywall ceiling and the 340, 440, 540 and WM5 ceilings are below the threshold. Open the 2.4-inch finder result.
At 2.5 inches, Franklin MAX Mode 2 alone remains in the current-only numeric result. Its overall figure has a separate 1.75-inch wood-stud qualification and wall cautions; the MultiScanner 340, 440 and 540 and StudSensor WM5 do not reach this value. Keep the 2.5-inch maximum selected.
The W2 SKU 71684 and Wood Stud SuperScan SKU 73241 each have shallow plans stated to 0.75 inch and a separate 1.5-inch DeepScan ceiling; at 1.5 inches they qualify only through a center-only deep plan, and both fall out at 1.6 inches. This is a maker-stated screening limit, not a predicted reading or guarantee through an actual wall. Compare the W2 instructions and review with the distinct Wood Stud instructions and review.
At the 0.7-inch numeric-only threshold, 83 of 101 current-reference configurations match. W2 and Wood Stud SuperScan qualify at this lower endpoint; shallow cue plans are still within their 0.75-inch ceiling. Their evidence does not promise every surface or reading. Read the W2 and Wood Stud reviews and open the exact 0.7-inch finder result.
At 0.8 inches, 66 numeric-only configurations remain. W2 and Wood Stud SuperScan qualify only on their separate 1.5-inch DeepScan center plans; their 0.75-inch shallow modes fall below this step. See the mode distinctions in the W2 and Wood Stud assessments, then keep the 0.8-inch threshold selected.
At 1.0 inch, 66 current-reference configurations pass the numeric-only filter. W2 and Wood Stud SuperScan meet this value through DeepScan, not the shallower 0.75-inch edge-capable arrangements. Review the W2 and Wood Stud mode limits or open the exact one-inch finder result.
At 1.1 inches, 61 configurations remain. W2 and Wood Stud SuperScan match through their own 1.5-inch center-only DeepScan plans, while shallow plans stated to 0.75 inch do not meet this threshold. Consult the W2 and Wood Stud reviews and preserve 1.1 inches in the finder.
At 1.2 inches, 60 current-reference configurations match. W2 and Wood Stud SuperScan remain on separate DeepScan center plans; neither shallow edge-capable plan reaches the threshold. Their maximum is a mode limit, not a promise of wall performance. Read the W2 and Wood Stud assessments or open the exact 1.2-inch result.
At 1.4 inches, fifty-one numeric-only configurations remain. Both W2 and Wood Stud SuperScan qualify only through a separate 1.5-inch DeepScan ceiling; their shallow 0.75-inch plans do not explain this higher match. Compare the W2 and Wood Stud manuals and keep the 1.4-inch minimum selected.
At equality at 1.5 inches, forty-nine current-reference plans remain. W2 and Wood Stud SuperScan qualify only through their center-only DeepScan arrangements; the shallow center-and-edge plans stop at 0.75 inch and neither deeper mode promises paired edges. Their maker-stated ceiling is not a measured wall result. Review the W2 and Wood Stud evidence and open the exact 1.5-inch numeric finder result.
At 1.6 inches, W2 and Wood Stud SuperScan drop out because their separate DeepScan stud ceilings are 1.5 inches; a wire-warning feature cannot extend that value. Other plans remain, including Bosch D-TECT120 in its mode-specific 2.36-inch Drywall plan. Review the W2 and Wood Stud boundaries or open the exact 1.6-inch finder result.
At the configured lower limit
At the current-only 0.7-inch lower endpoint, 83 of 101 reviewed configurations have a numeric stud-finding plan at or above the threshold. SuperScan K2 and K3 qualify through separate 1.5-inch DeepScan stud plans; their shallow TC/StudScan modes stop at 3/4 inch, and K3's metal-target scan does not raise stud depth. Klein ESF050/ESF200 stop at 0.75 inch, while ESF100/ESF150LL state 1.5 inches. Magnetic MSF100/MSF1002 have a separate one-inch ferrous-target claim but not an electronic wood-stud scan; C.H. Hanson 3040/3047 have no published numeric stud-depth maximum. Walabot's four DIY 2 and four DIY 2 M packages have a general four-inch object claim but no numeric wood-stud value, so unknowns do not meet the positive minimum. The Bosch D-TECT200C and GMS120-27 have distinct drywall wood-beam limits of 38 mm (about 1.496 inches) and qualified 30 mm (about 1.1811 inches). Open the exact numeric-only 0.7-inch finder result.
Compare the standard StudSensor and StudSensor Center at this 0.75-inch boundary with Pro25, Pro35, the Basic's 3/4-inch limit, A200, A250c, A100, A150, HD25, HD35, HD55, HD70 OneStep and Pro45 mode-specific limits. The magnetic single StudScout and 2-Pack have no stated depth. Open the finder at the configured lower limit.
At the next tenth-inch step
At 0.8 inches, fifty-five numeric plans remain. The SuperScan K2 and K3 remain on separate DeepScan stud plans stated to 1-1/2 inches; their TC and ordinary StudScan ceilings are 3/4 inch. Klein ESF100 and ESF150LL remain above this step with 1.5-inch stud ceilings; the MSF100 and MSF1002 also clear it with their one-inch magnetic ceilings. ESF050 and ESF200 fall out because each states only 3/4 inch for wood studs. All five Bosch drywall wood/stud plans exceed this threshold, with D-TECT200C at 38 mm and GMS120-27 at 30 mm on its qualified beam arrangement; these limits differ from their separate metal, wire or concrete maxima. ESF050 · ESF200 · ESF100 · ESF150LL · MSF100 · MSF1002 · D-TECT200C · GMS120-27 · EXPERT D-tect18V-200-17C · GMS 120 · D-TECT120 · SuperScan ID · A250 · x85. Open the exact numeric-only 0.8-inch finder result.
The Basic, Pro25, Pro35, HD25 and HD35 are 0.75-inch boundary witnesses. The Pro45, A200, A250c, A100, A150, HD55 and HD70 pass 0.8 through separate 1.5-inch DeepScan stud plans, not because their shallower 0.75-inch StudScan ceilings changed. StudScout 2-Pack still has no numeric depth claim. Open the finder at the next 0.1-inch step.
At 1.0 inch
At 1.0 inch, fifty-five reviewed configurations meet the threshold. K2 and K3 remain on their separate 1-1/2-inch DeepScan stud plans, not on the 3/4-inch ceiling for their shallow TC and StudScan modes. Klein's magnetic MSF100 single and MSF1002 two-pack reach equality on the one-inch scan-depth claim for metal studs or fasteners; the second tool adds a reference point, not per-tool range. At 1.1 inches both drop out. This is a magnetic target limit, not an electronic wood-density scan or a guaranteed reading. Klein ESF100 and ESF150LL each state a 1.5-inch stud ceiling, while ESF050 and ESF200's 3/4-inch wood-stud figures do not clear this level. D-TECT200C's and GMS120-27's own drywall wood ceilings, 38 mm and qualified 30 mm, exceed this setting; D-TECT200C's 38 mm (about 1.496-inch) maximum still falls just below 1.5. Their other target modes do not raise these stud figures. SuperScan K2 · SuperScan K3 · MSF100 · MSF1002 · ESF050 · ESF200 · ESF100 · ESF150LL · D-TECT200C · GMS120-27 · EXPERT D-tect18V-200-17C · GMS 120 · D-TECT120 · SuperScan ID · A250 · x85. Open the exact numeric-only 1.0-inch finder result.
The M5 documents center and both edges, while the M10 and M10S describe center only and require their own wall-contact calibration routines. The T6, T9, A200, A250c, A100, A150, StudSensor Center, Pro45, HD55 and HD70 also meet the threshold. Each deeper Zircon match uses a separate DeepScan plan rather than relying on its 3/4-inch StudScan ceiling. Open the finder at the exact 1.0-inch threshold.
At 1.1 inches
At 1.1 inches, fifty numeric plans remain. K2 and K3 still qualify through DeepScan's separate 1-1/2-inch stud ceiling; K3's metal-target range does not raise it. Klein ESF100 and ESF150LL stay in with 1.5-inch stud ceilings, whereas ESF050 and ESF200's 3/4-inch wood-stud ceiling is below this setting. GMS120-27’s qualified 30 mm (about 1.1811-inch) beam ceiling is just above this setting, while its live-cable and metal maxima are separate targets. D-TECT200C and EXPERT D-tect18V-200-17C list 38 mm wood-beam ceilings (about 1.496 inches); the older GMS 120 lists 1.5 inches and D-TECT120 Drywall mode lists 2.36 inches. Do not treat separate metal, wire or concrete maxima as stud depth. K2 · K3 · ESF050 · ESF200 · ESF100 · ESF150LL · GMS120-27 · D-TECT200C · EXPERT D-tect18V-200-17C · GMS 120 · D-TECT120 · SuperScan ID · A250 · x85. Open the exact numeric-only 1.1-inch finder result.
The tenth-inch increase crosses those three Franklin ceilings without changing their feature descriptions; the T6, T9, A200, A250c, A100, A150, StudSensor Center, Pro45, HD55 and HD70 still meet 1.1 inches through deeper plans. T9's separate conditional plaster statement is 1.6 inches; metal-scan depth on A250c does not extend its stud limit. Open the finder with the 1.1-inch minimum preserved.
At the 1.2-inch boundary
At 1.2 inches, forty-nine numeric-only plans remain: K2 and K3 qualify through the separate DeepScan 1-1/2-inch stud plan; the K3 metal-target mode is not a substitute. Klein ESF100 and ESF150LL each state a 1.5-inch stud limit and clear this step; ESF050 and ESF200's 3/4-inch wood-stud ceiling does not. D-TECT200C’s 38 mm wood-beam ceiling also clears the step, while GMS120-27’s 30 mm (about 1.1811 inches) ceiling does not. The GMS120-27 manual’s 30 mm figure is qualified for a 54 mm beam behind 30 mm plasterboard; its 50 mm live-cable and 100/120 mm metal figures do not raise wood detection. The D-TECT200C’s 38 mm is a below-1.5-inch ceiling, not a guarantee through another wall. Review the K2, K3 and Klein ESF050, ESF200, ESF100 and ESF150LL alongside D-TECT200C and GMS120-27, then open the exact numeric-only 1.2-inch finder scenario.
Just below the 1.5-inch step
At 1.4 inches, forty-nine numeric-only plans remain. K2 and K3's distinct DeepScan stud plans clear this threshold and reach equality at the 1.5-inch boundary; their shallower TC/StudScan ceilings remain 3/4 inch. Klein ESF100 and ESF150LL, each with a 1.5-inch stud ceiling, clear this threshold and remain through equality at 1.5; ESF050 and ESF200, at 3/4 inch for wood, do not. Four of the five Bosch models clear this screen: EXPERT D-tect18V-200-17C and D-TECT200C each list 38 mm (about 1.496 inches) for drywall wooden beams; GMS 120 lists 1.5 inches; D-TECT120 Drywall mode lists 60 mm (2.36 inches). GMS120-27 falls below this threshold at 30 mm (about 1.1811 inches). The next 0.1-inch setting removes both 38 mm plans because 38 mm is just below 1.5 inches, while the older GMS 120, K2/K3 DeepScan plans and the two Klein 1.5-inch plans meet equality and D-TECT120 remains above it.
See SuperScan K2, SuperScan K3, the Klein ESF050, ESF200, ESF100 and ESF150LL and the exact EXPERT 18V, D-TECT200C, GMS120-27 depth limit, GMS 120 and D-TECT120 limits, and open the numeric-only finder with 1.4 inches preserved.
At 1.5 inches
At 1.5 inches, forty-seven reviewed plans meet the numeric threshold. K2 and K3 join at equality through DeepScan's 1-1/2-inch stud maximum; K3's Metal Scan does not affect that stud boundary, and both manuals caution that edge cues can be limited above 3/4 inch. Klein ESF100 and ESF150LL reach their stated 1.5-inch stud ceiling at equality; each falls out at the next 1.6-inch step. ESF050 and ESF200 stop at 3/4 inch for wood studs. Bosch GMS 120 also reaches equality for wood studs and D-TECT120 clears it in Drywall mode; both D-TECT200C and EXPERT D-tect18V-200-17C fall just short because their manuals list 38 mm (about 1.496 inches). GMS120-27's 30 mm (about 1.1811 inches) ceiling is also below this step. The exact decimal boundaries make the 1.4-to-1.5 and 1.1-to-1.2 comparisons meaningful. SuperScan K2 · SuperScan K3 · ESF050 · ESF200 · ESF100 · ESF150LL · GMS 120 · D-TECT120 · D-TECT200C · GMS120-27 · EXPERT D-tect18V-200-17C · SuperScan ID · A250 · x85. Open the exact numeric-only 1.5-inch finder result.
The T6, T9, A200, A250c, A100, A150, StudSensor Center, Pro45, HD55 and HD70 join this equality group; Center and Pro45, like the other deeper Zircon models, reach 1.5 only in DeepScan. T9's conditional plaster ceiling of 1.6 inches is not a general drywall claim, and A250c's metal-target depths do not extend its stud limit. M5, M10 and M10S stop at one inch, while the standard StudSensor, Basic, Pro25, Pro35, HD25, HD35 and both StudScout configurations do not meet or state the threshold. Compare these with the M50, 710, M210 and MAX; see the exact finder result.
At 1.6 inches
At a 1.6-inch threshold, ten reviewed plans remain: the nine Franklin arrangements listed in the comparison plus Bosch D-TECT120's 60 mm Drywall mode. GMS 120, SuperScan K2 and SuperScan K3 each stop at their 1.5-inch stud ceiling; the K3's separate metal range does not extend it. The EXPERT 18V drywall wood-beam plan at 38 mm also falls short; D-TECT120 is not using its 4.75-inch Concrete-mode ceiling here. Other Zircon 1.5-inch plans stop at this tenth-inch boundary too. Read the K2, K3, D-TECT120, GMS 120, EXPERT 18V and MAX limits; open the finder with a 1.6-inch minimum.
Compare the T9 manual's plaster-specific statement, the 710, M210, MAX and X2100; see the finder results for a 1.6-inch minimum. The numeric-only result does not name a single compatible surface.
At 1.7 inches
Five reviewed plans remain at this threshold: M210, T13 and X2100 meet it, MAX Mode 2 exceeds it, and Bosch D-TECT120's 60 mm (2.36-inch) Drywall-mode plan also clears it. GMS 120's 1.5-inch wood-stud ceiling and the EXPERT D-tect18V-200-17C's 38 mm (about 1.496-inch) drywall wood-beam ceiling do not. SuperScan K4, StudSensor 70, HD900 OneStep, SuperScan ID, A250 and the conservatively interpreted x85 wood-stud plan stop at 1.5 inches; metal-scan, AC, concrete and thermal limits do not extend a stud result. Compare the D-TECT120, GMS 120 and EXPERT 18V scanner, plus the K4, StudSensor 70, HD900 OneStep, ID, A250 and x85. Open the numeric-only finder at 1.7 inches.
Compare M210, MAX, T13 and X2100 at this boundary, then open the finder with 1.7 inches preserved.
Above 1.7 inches
At 1.8 inches, two reviewed configurations remain: Franklin MAX Mode 2 and Bosch D-TECT120 Drywall mode at 60 mm (2.36 inches). The D-TECT120's 4.75-inch Concrete-mode claim is not used as stud depth; GMS 120 stops at 1.5 inches and the EXPERT 18V drywall wood-beam plan is 38 mm (about 1.496 inches). SuperScan K4, StudSensor 70, HD900 OneStep, SuperScan ID, A250 and x85 also top out at 1.5 inches for the authored stud plans; x85's general 2-inch claim does not override its manual's wood qualifier. Compare the D-TECT120, GMS 120 and EXPERT 18V scanner with the K4, StudSensor 70, HD900 OneStep, ID, A250 and x85.
That pair is not a reason to describe MAX or D-TECT120 as guaranteed 1.8-inch wood-stud finders. The MAX's overall figure has a separate 1.75-inch wood-stud qualification, and the D-TECT120 figure is an upper limit dependent on target and base material. Read the MAX's exact mode limits and D-TECT120's Drywall-mode limits, then see the reviewed-library result at 1.8 inches.
Near the Bosch Drywall-mode ceiling
At a 2.3-inch numeric minimum, two reviewed configurations remain: D-TECT120's 60 mm (2.36-inch) Drywall mode and Franklin MAX Mode 2. Bosch's broader 4.75-inch Concrete-mode/object claim does not replace its 2.36-inch drywall figure. Neither GMS 120 nor the EXPERT 18V wood-beam plan reaches this threshold.
Compare the D-TECT120's exact Drywall-mode limit with the MAX's distinct mode-specific wood limit, then open the numeric-only 2.3-inch finder result.
Just above that ceiling
At a 2.4-inch minimum, only Franklin MAX Mode 2 remains in the reviewed numeric-only result. Bosch D-TECT120's Drywall-mode limit is 60 mm (2.36 inches), so it falls short of this next tenth-inch setting; GMS 120 and EXPERT D-tect18V-200-17C have still lower drywall wood-stud/beam figures. Do not treat the 4.75-inch Concrete-mode claim as a substitute.
Read the D-TECT120 assessment and MAX's wood-specific caveat, then keep the 2.4-inch minimum in the finder.
When the visitor also selects “Include earlier models,” 101 reviewed configurations match the 0.7-inch threshold, including current K2/K3 DeepScan plans; the original Walabot DIY is included on its model-labelled general four-inch reach, while DIY Plus and Plus X remain out because no numeric stud-depth maximum is established. K2 · K3 · Read the original DIY review, or open the exact earlier-inclusive 0.7-inch finder scenario.
At the configured upper limit
At 2.5 inches, MAX Mode 2 alone remains in the current-only numeric result. SuperScan K4, StudSensor 70 and HD900 OneStep, as well as ID, A250 and x85, do not meet this boundary; x85's 2-inch DeepScan headline is qualified by its manual's 1.5-inch wood-stud note and is not a 2.5-inch plan. K4 · StudSensor 70 · HD900 OneStep · ID · A250 · x85. MAX's 2.5-inch overall figure does not replace its 1.75-inch wood-stud qualification.
Use the MAX assessment to keep the overall and wood-specific figures separate, or open the current-only finder with a 2.5-inch minimum.
With earlier models included, the 2.5-inch numeric result contains Franklin MAX and original Walabot DIY: the latter's general detection ceiling names studs but remains a comparison limit, not a depth reading. DIY Plus and Plus X still have no documented stud-depth maximum, so do not count them. Open the exact earlier-inclusive 2.5-inch finder scenario, keeping both answers intact.
Current-only or earlier models?
With the earlier-model option off, the finder uses the 101 current-reference models. The discontinued Walabot DIY, DIY Plus and DIY Plus X and five earlier Milwaukee package identities remain outside this default set; their older identity does not establish current stock. Current Zircon SuperScan K2 SKU 71212 and K3 SKU 71220 remain distinct: both have 9V-powered stud modes, while K3 adds a separate metal-target scan. Current Walabot DIY 2 and DIY 2 M package configurations are likewise kept separate: DIY 2 base, Essential, Deluxe, Premium, DIY 2 M base, M Essential, M Deluxe and M Premium. Open the current-model-only finder scenario. For a separately documented dry-wall wood mode and center cue, compare the current Bosch GMS120-27 and check its own depth and surface limits.
This option is a scope control, not a statement that every remaining product is in stock. Current-reference status here means the exact source page or current U.S. listing was available for review; it does not verify a seller’s inventory or your wall. The reviewed source page for Milwaukee 2291-20 lists only the bare scanner and manual and says no longer available; its 2291-21 page says the same for the separate battery/charger/case kit.
With “Include earlier models,” the reference set adds 22 earlier model records to 101 current-reference models, for 123 reviewed records overall. One recalled FatMax 400/77-730 record remains withheld pending an exact unit date code, leaving 122 eligible finder entries. These are reviewed references, not a current-stock claim. The earlier Walabot devices are separate generations, not DIY 2 bundles: original DIY DY20BCGL02 has a model-labelled general four-inch ceiling naming studs but no depth readout; DIY Plus DY2PBCGL01 documents a conditional lath-and-plaster Expert workflow without a verified numeric stud-depth ceiling; Plus X D2KGBC0P01 supports drywall and lath-and-plaster with a center cue and calibration but has no verified numeric stud-depth maximum. See the distinct original DIY, DIY Plus and Plus X assessments; each requires an Android 7+ phone with USB OTG per current support, and its visual result is not a safe-drill check. The earlier Milwaukee 2290 package identities share a scanner, while the 2291 package identities use a different scanner generation; do not transfer the 2290 warning feature to 2291. Current Zircon SuperScan K2 SKU 71212 and K3 SKU 71220 are also distinct: K3 adds a separate metal-target scan that does not raise stud depth. The four current Walabot DIY 2 and four DIY 2 M packages remain individually assessed: DIY 2 base · Essential · Deluxe · Premium · DIY 2 M base · M Essential · M Deluxe · M Premium. Open the finder with earlier models included; compare the 2290-20, 2290-21, 2290-23, 2291-20 and 2291-21 assessments.
The 2291 manual lists Stud mode settings of 0.5, 1 and 1.5 inches and shows edges and a center cue. Its separate 6-inch Metal-mode statement concerns metal targets in concrete, not stud depth; its exact source set does not document a live-wire meter. The distinct 2290 manual also gives a 1.5-inch Stud-mode limit and center/edge cues, but separately describes an AC-voltage V indicator with limitations. Do not transfer that indicator between generations or treat it as a safety check. A match means the chosen documented plan fits, not that an old offer is complete, safe, available or in good condition.
Current-only scope contains 101 reviewed configurations. Including earlier models yields 122 eligible finder entries from 123 model records, because FatMax 400/77-730 is withheld pending an exact unit date code for recall applicability. These are reference counts, not a current-stock claim. The three StudBuddy assessments are current-reference entries because their named models appear in the maker shop; Original 2-, 6- and 12-packs and the Pro six-pack are quantity-only variants, not extra finder mechanisms. Compare the Original, Pro and Spot models, and see the current-only scope or include earlier-reviewed products in the same finder. One earlier electronic reference is the STANLEY Stud Sensor 200 (S200), exact manual model STHT77406: its 2012 manual describes a one-pass center icon/tone, a separate limited live-120V warning, and up to 3/4 inch of stud finding through drywall. The S200 warning is not a safe-drilling check, and the manual does not establish a separate edge-sensing mode. Read the S200 model assessment and keep the earlier-model and live-warning answers together.
With earlier models and dry interior drywall selected together, the library includes both the older magnetic StudMark+ with a bubble vial and the electronic STANLEY S200 manual model STHT77406. The S200 is a one-pass center finder with a stated 3/4-inch drywall stud ceiling and a separate limited live-AC warning. Neither it nor the magnetic StudMark+ should be treated as a drilling-safety check. The manufacturer now redirects its legacy StudMark+ product route to the distinct 7310 page, so inspect an older offer carefully. Compare the StudMark+ assessment, the current 7310 review and the S200 model assessment, then open the same earlier-inclusive drywall finder.
With earlier models, dry interior drywall and both center-and-edge indications selected together, StudMark+ is excluded: its magnetic fastener catch and bubble vial are not documented center or edge cues. It responds at likely fastening points rather than mapping the member. Compare its source-based assessment with Franklin ProSensor M210, a reviewed alternative with a documented center-and-edge plan, and keep all three conditions selected in the same finder.
With current models only and dry interior drywall selected together, the earlier StudMark+ stays out of the finder result. Its magnetic fastener point and bubble vial do not change the separate current 7310 assessment; keep both current-only and drywall selected in the finder.
Current-only scope returns 101 eligible reviewed configurations. The two Kreg magnetic finders remain distinct: KMM1000 is battery-free and combines a magnet, level and marking notch; KMM1000LZ adds a laser layout line and two AAA batteries. A maker listing does not promise seller availability. Compare the KMM1000 and KMM1000LZ assessments, then keep current-only scope in the finder.
Including earlier models returns 122 eligible finder entries: 101 current-reference configurations and 21 earlier ones. KMM1000 remains a battery-free magnetic locator with a level and marking notch; KMM1000LZ adds a separate laser layout line and uses two AAA batteries. These are different marking workflows, not a seller-stock claim. Read the KMM1000 and KMM1000LZ assessments and preserve the earlier-inclusive choice.
The earlier=yes interaction does not increase Kreg depth: both products stay below every positive numeric minimum because their explicit maximum buried-fastener value is 0.150 inch, not 0.7 inch. At 0.7, 1.5 and 2.5 inches, the KMM1000 and KMM1000LZ remain excluded; compare the 0.7-inch earlier-inclusive case, the 1.5-inch case or the upper boundary.
Current-only scope returns 101 eligible configurations, including the RYOBI ESF5002 whole-width display with a center marker and the magnetic StudMark 7310, which searches for drywall fastener points rather than electronic stud-density signals. CRAFTSMAN's CMHT77633 indicates edges only; CMHT77620 provides a center cue to 3/4 inch; CMHT77621 has separate one-inch wood and 1.5-inch metal-stud limits. Compare the ESF5002, CMHT77633, CMHT77620 and CMHT77621 assessments. The 7310 supports the unfiltered drywall choice; keep current-only scope and drywall together, or open the current-only finder. Listing status is not seller-stock evidence.
With earlier products included, 122 eligible configurations are available: 101 current-reference and 21 earlier. RYOBI ESF5002 and the magnetic StudMark 7310 remain distinct current products, while CRAFTSMAN CMHT77633, CMHT77620 and CMHT77621 retain different edge/center cues and model-specific depth limits. A package name does not make the 77620 and 77621 interchangeable. Read the ESF5002, StudMark 7310, CMHT77633, CMHT77620 and CMHT77621 assessments, and keep earlier models selected.
With earlier models included and a 0.7-inch minimum, the CRAFTSMAN 77633, 77620 and 77621 all remain candidates; at 1.5 inches, only the 77621 does, via its separate metal-stud plan. Its manual's one-inch wood limit differs from its metal limit. Keep earlier models and 0.7 inches selected · keep earlier models and 1.5 inches selected. Earlier models plus a required live-wire warning admits the current center-finding CMHT77620 and CMHT77621, but not the edge-only CMHT77633; the added AC warning is not electrical clearance. Open the same earlier-and-warning finder scenario.
At the 0.7-inch threshold, the earlier S200 qualifies on its 0.75-inch drywall plan; it falls below the next 0.8-inch step. Read the S200 assessment and keep earlier scope and the lower boundary together at 0.7 inches. The S200 is not a 0.8-inch match. RYOBI ESF5002 also matches at the 0.7-inch minimum and remains in the numeric-only match set at equality at 1.5 inches. It drops out above its product-page 1.5-inch ceiling, while this maximum remains a comparison limit, not a promise for a wall. Read the ESF5002 assessment and compare the precise earlier-inclusive boundaries below.
At 1.6 inches with earlier models included, RYOBI ESF5002 drops out at its stated 1.5-inch limit while Bosch D-TECT120 remains through its separate 60 mm Drywall-mode plan. That mode ceiling does not guarantee a reading in a particular wall. Keep earlier models and 1.6 inches selected together.
At 2.5 inches, RYOBI ESF5002 drops out while Franklin MAX Mode 2 remains. The MAX's overall 2.5-inch claim is separate from its 1.75-inch wood-stud figure and does not predict a wall result. Open the exact earlier-inclusive 2.5-inch scenario.
With earlier models included and a 1.6-inch minimum, none of these CRAFTSMAN products matches: CMHT77621's separate metal-stud limit ends at 1.5 inches, while the 77620 and 77633 stop at 0.75 inch. Compare the 77621 target-specific limit with D-TECT120's separate drywall ceiling; keep earlier models and 1.6 inches selected.
At 2.5 inches with earlier models included, no CRAFTSMAN model meets the threshold: CMHT77621 is limited to 1.5 inches for metal studs, and CMHT77620/77633 to 0.75 inch. These comparison ceilings are not predicted readings. Read the target-specific ceiling with the original Walabot DIY comparison, then open the same earlier-inclusive threshold.
Current-only scope returns 101 eligible configurations. The five Zircon L-series models are separate U.S. identities: L20 (SKU 75114) and L30 (72187) have shallow 3/4-inch edge plans; L40 (72190) and L50 (74941) add separate 1-1/2-inch edge DeepScan plans; L70 OneStep (74947) has a shallow center-and-edge StudScan and a distinct center-oriented DeepScan. Compare the L20, L30, L40, L50 and L70, as well as DW0100, DW0150, MultiScanner 340, 440, 540, WM5, W2 and Wood Stud SuperScan. Keep current-only scope selected; this classification does not assert seller stock.
Including earlier models returns 122 eligible configurations: 101 current-reference entries and 21 earlier ones. The earlier Zircon SuperScan M1 has Target Control and conventional StudScan arrangements, each stated to 3/4 inch; M2 adds a separate 1-1/2-inch DeepScan plan. Neither manual identifies a retail SKU or proves a seller package. Compare the M1 and M2 assessments with the current L20, L30, L40, L50 and L70 modes, and keep earlier models selected. Eligibility is not evidence of live seller availability.
At a 0.7-inch minimum with earlier models included, 101 configurations match. M1 and M2 both meet that shallow threshold through their 3/4-inch plans; M1 has no deeper mode, while M2's separate DeepScan plan reaches 1.5 inches at equality and drops below a 1.6-inch request. The M2 manual cautions that deeper scanning can lose edge indications through surfaces thicker than 3/4 inch; neither ceiling guarantees a wall reading. Compare the M1 limits and M2 DeepScan caveat; keep earlier models and 0.7 inches selected, check the same scope at 0.8, compare equality at 1.5 or raise the same minimum to 1.6.
Including earlier models and requiring a live-wire warning returns 61 eligible configurations. M1 and M2 have model-specific WireWarning plans, limited to certain live, unshielded AC wiring; their alerts can miss conductors and do not establish that a wall is safe to drill. Neither has a separate AC Scan mode. Review the M1 warning limits and M2 warning limits alongside the same earlier-inclusive live-wire finder.
With earlier products included at a 0.7-inch minimum, 87 configurations match, including the five L-series shallow plans and the separate shallow plans of the SuperScan M1 and M2. M1's two modes stop at 3/4 inch, so it drops at 0.8; M2 adds a distinct 1-1/2-inch DeepScan. Open the same earlier-inclusive 0.7-inch scenario. At 1.5 inches with earlier models included, 63 configurations match. L40/L50 qualify via edge DeepScan, L70 via center-oriented DeepScan, and M2 meets equality only through its separate DeepScan; M1 and the shallow M-series modes remain below that boundary. M2's manual warns that edge indications may be absent through surfaces thicker than 3/4 inch. Keep the 1.5-inch minimum with earlier products enabled. Earlier-inclusive results with a required live-wire warning total 53; L30 through L70, M1 and M2 add limited warning plans. Those warnings can miss conductors and are not safety clearance. L30 · L40 · L50 · L70 · Open the exact earlier-plus-warning result.
With earlier models included, 69 configurations meet a 1.5-inch minimum; DEWALT DW0150 qualifies at equality on its metal-stud plan, not its one-inch wood plan. Keep earlier models and 1.5 inches selected. At 0.7 inch, the same earlier-inclusive scope returns 101 matches; both DW0100 and DW0150 meet that lower comparison threshold on documented drywall stud plans. Preserve earlier scope and 0.7 inches. Requiring a live-wire warning with earlier models returns 61 configurations, including the DEWALT models' separate, limited AC cues. These warnings can miss conductors and are not electrical clearance tests. Open the exact earlier-inclusive live-wire result.
Current-only and earlier-inclusive results
Current-only scope returns 101 eligible configurations across the reviewed U.S. reference library. DEWALT DW0100 and DW0150 are distinct models with separate manuals and depth limits; DW0150's one-inch wood and 1.5-inch metal-stud ceilings are not transferable to DW0100. Compare them with W2, Wood Stud SuperScan, MultiScanner 540, 440, 340 and WM5, then open the exact current-only finder scenario.
Including earlier products returns 122 eligible finder configurations: 101 current-reference and 21 earlier. DW0100 and DW0150 remain distinct current models; neither the earlier-model choice nor a shared brand transfers their separate 3/4-inch, one-inch wood or 1.5-inch metal-stud depth limits. Compare their assessments with W2, Wood Stud SuperScan, MultiScanner 540, 440, 340 and WM5. These reference entries do not establish current stock. Open the exact earlier-inclusive finder scenario.
At an earlier-inclusive 1.5-inch minimum, 69 configurations match. MultiScanner 540, 440 and 340 reach equality through distinct DeepScan stud plans; DEWALT DW0150 reaches it only on its metal-stud plan. Its wood limit remains one inch, and DW0100 does not reach this threshold. Keep earlier scope and the 1.5-inch minimum together.
An earlier-inclusive 0.7-inch minimum returns 101 configurations. DEWALT DW0100 documents 0.75-inch wood and metal limits; DW0150 has separate one-inch wood and 1.5-inch metal-stud limits. Those thresholds describe supported plans, not guaranteed readings. Keep earlier models and 0.7 inches selected.
With earlier products included and a live-wire warning required, 61 configurations match. DW0100 and DW0150 add limited AC alerts alongside their documented stud plans; each manual warns that wiring can be missed. Open the exact earlier-inclusive live-wire result.
The earlier-inclusive live-wire requirement also returns 61 configurations. A DEWALT alert is not a voltmeter or clearance test, and an absent warning cannot prove a wall is safe. Keep both earlier scope and the live-wire requirement selected.
Current-only scope returns 101 eligible configurations. The SuperScan W2 SKU 71684 uses a color LCD and separate TC, StudScan and DeepScan arrangements; Wood Stud SuperScan SKU 73241 uses Auto/Edge and a separate center-only DeepScan. Their controls, modes and battery requirements differ. Current-reference status is not a seller-stock claim. Open the exact current-only finder scenario.
Including earlier products returns 122 eligible configurations: 101 current-reference and 21 earlier. W2 and Wood Stud SuperScan remain in the current-reference portion, with different modes and depth/cue limitations as described in their W2 and Wood Stud assessments. Earlier eligibility is not current seller availability. Open the exact earlier-inclusive finder scenario.
Milwaukee 2291: a 1.5-inch stud setting is the boundary
At 1.5 inches with earlier models included, fifty-three reviewed configurations have a documented stud plan at or above the threshold. Current SuperScan K2 and K3 join at equality through DeepScan; K3's separate Metal Scan is for metal targets and does not extend the stud ceiling. That also includes the three 2290 packages using a 2290-20 scanner and the separate 2291-20/2291-21 pair, each with a manual-stated 1.5-inch Stud-mode ceiling; the two generations are not interchangeable. Their separate 6-inch metal-mode claims concern metal targets in concrete, not stud depth. Read K2, K3, the 2290-20 scanner limits, 2290-21 kit contents, 2290-23 combo contents, 2291-20 limits or 2291-21 kit details; open the same earlier-inclusive 1.5-inch finder scenario.
At 1.6 inches with earlier models included, all five Milwaukee package identities using 2290 or 2291 scanners drop out: each manual’s maximum selectable Stud-mode setting is 1.5 inches. The 2290 group’s and 2291 group’s separate 6-inch Metal-mode figures do not rescue a stud-depth requirement. Review the 2290 scanner ceiling, its kit and combo, plus the 2291 bare scanner and kit; compare the still-matching Bosch D-TECT120 drywall limit if 1.6 inches is essential, and open the same earlier-inclusive 1.6-inch finder scenario. A documented maximum is only a comparison limit, never a guaranteed reading through a particular wall.
With earlier models included and a live-wire meter required, the three Milwaukee 2290 package identities qualify through their shared scanner’s limited AC-voltage indicator; the 2291-20 and 2291-21 do not, because their exact manual does not document it. Those three package variants use one scanner, and the indicator can miss wiring, is affected by orientation and obstructions, and cannot establish a safe drilling location. With this same condition, 38 reviewed configurations match. Review the 2290-20 scanner, 2290-21 kit and 2290-23 combo. Open the same earlier-inclusive live-wire finder scenario and compare a current source-backed assessment such as Bosch GMS120-27, with its own warning limitations.
Older phone imagers on lath-and-plaster walls
When earlier models are included and lath-and-plaster is selected, DIY Plus and Plus X have model-specific support for that surface, while the original DIY does not; this is conditional wall coverage, not a guarantee through every lath or reinforced assembly. Compare the separate DIY Plus Plaster/Expert mode and Plus X drywall and lath support, and keep both answers in the earlier-inclusive lath-and-plaster finder. Walabot's current compatibility help requires Android 7+ with USB OTG for these older devices; verify the exact phone, app and calibration before relying on any old listing.
Including earlier models does not make SuperScan M1 or M2 suitable for lath and plaster: each model-specific manual says it is not designed for that surface, and M2's deeper drywall mode does not change that limit. Compare the M1 and M2 surface notes and keep “Include earlier models” and “Lath and plaster, with verification” selected in the same finder scenario.
If the same visitor needs lath-and-plaster support and both center and edge cues, the documented Walabot Plus and Plus X center-only plans do not satisfy the cue condition; Franklin's M210 remains a reviewed conditional-plaster option with both cues. Keep the earlier-model, lath-and-plaster and center-and-edge choices together in the finder.
The exact manuals document STANLEY S100 at a 0.75-inch drywall maximum and S150/S300 at 1.5 inches; compare those ceilings to slider steps without treating any maximum as a guaranteed wall reading. S100 clears 0.7 but falls short of 0.8. S150 and the S300 STUD mode meet 1.5 at equality but fall short of 1.6. S150's selectable settings are 1/2, 1 and 1-1/2 inches; the S300's separate 3-inch METAL SCAN is for metal targets, not studs, and its AC TRACKING function is a distinct mode. Read the S100, S150 and S300 evidence, then compare the same earlier-inclusive 0.7-inch edge-and-warning scenario at 0.7 with its 0.8-inch boundary. For the 1.5-inch boundary, use the S150 edge-and-warning scenario and compare the next 1.6-inch step; S300's distinct cue plan can be checked at the same-condition center-and-edge finder.
The reviewed library has 101 current-reference products and 123 model records, but the earlier-inclusive finder returns 122 eligible configurations: it withholds the 77-730 because CPSC recall applicability depends on an exact unit date code that this model record cannot establish. Six of the seven separately assessed older STANLEY models remain in buying matches: IntelliSensor Plus 77-115, edge-only IntelliSensor 77-100 and 77-110, Stud Sensor 75/77-075, and distinct STHT77587 and STHT77588. The FatMax 400/77-730 review remains available as a technical and recall reference, not a recommendation. The eligible models differ: 77-115 selects depth to 1-1/2 inches; 77-100, 77-110 and 77-075 are edge-oriented; STHT77587 is limited to 3/4 inch; STHT77588 has a material-specific 1-inch wood versus 1-1/2-inch metal table. Read the 77-115, 77-100, 77-110, FatMax 400 recall/reference review, Stud Sensor 75 / 77-075, STHT77587 and STHT77588 alongside the S100, S150, S200 and S300. The STHT operating figures rely on official STANLEY reader text rather than directly archived manual files. Official images show regional -0 versions of the exact base model codes and do not establish the U.S. package. This is a documented fit library, not a stock or compatibility guarantee; open the same earlier-inclusive finder choice.
Earlier STANLEY models at numeric thresholds
At a 0.7-inch earlier-inclusive numeric minimum, the 3/4-inch ceilings of IntelliSensor 77-100, 77-110, Stud Sensor 75/77-075 and STHT77587 qualify; those limits fall short at the next 0.8-inch step. IntelliSensor Plus 77-115 and the manual-defined FatMax 400 reach 1-1/2 inches, while STHT77588’s table gives 1 inch for wood and 1-1/2 inches for metal. The FatMax’s model-level record is withheld from buying matches because recall applicability depends on an unverified exact unit date code. These are model-specific comparison ceilings, not readings guaranteed through a visitor’s wall. Review the 77-115, 77-100, 77-110, FatMax 400 recall/reference review, 77-075, STHT77587 and STHT77588 assessments, then open the same earlier-inclusive 0.7-inch numeric scenario or compare its next step.
At the 1.5-inch earlier-inclusive numeric boundary, STANLEY 77-115 meets its stated stud ceiling and STHT77588 reaches it on metal only; both drop at 1.6 inches. The FatMax 400’s manual also states a 1.5-inch stud ceiling, but CPSC recall 09-185 makes its generic model identity ineligible for buying matches until a unit’s date code is resolved. The 77588 wood-stud limit remains 1 inch, and the FatMax 3-inch METAL SCAN figure is not stud depth. See the selectable-depth 77-115, FatMax 400’s modes and recall note and 77588’s wood/metal table. Keep earlier scope and the 1.5-inch threshold together; compare the next 1.6-inch step.
With earlier models included and a live-wire meter required, STHT77587 and STHT77588 remain matched for their center-only cues plus a separate limited AC warning. FatMax 400’s manual documents a combined center/edge stud scan and an AC warning, but CPSC recall applicability depends on an exact unit date code, so the generic model is excluded from buying matches. The 77-115, 77-100, 77-110 and 77-075 manuals do not document a meter; S300 AC TRACKING is separate from its STUD cues. Read the FatMax 400 recall/reference review, 77587 and 77588 for model-specific limits. A positive alert does not prove safety or clear a wall. Open the same earlier-inclusive meter requirement.
Drywall plus “include earlier models” returns 122 eligible configurations; six of the seven older STANLEY references remain in buying matches. The 77-730 review remains available but is excluded because CPSC recall applicability depends on an exact unit date code that this model record cannot establish. The 77-115/100/110/075 and 77587 are edge- or center-specific tools, not interchangeable; STHT77588’s depth varies by stud material. Compare the 77-115, 77-100, 77-110, FatMax 400 recall/reference review, 77-075, 77587 and 77588. These are separate model references, not a claim of seller packages or current stock. Open the same earlier-inclusive drywall choice.