Feature fit
Stud edges, center indicators and full-width displays
Indicator styles answer different layout questions. An edge light helps locate a transition. Two edges let you estimate a centerline. A broad LED array can show more of the response across the tool face. A signal-strength display can help compare weak and strong changes. None of these displays independently establishes what the hidden object is.
The reviewed library contains 101 current-reference models and 123 model records overall; 122 remain eligible when earlier models are included. Three CRAFTSMAN models illustrate distinct cues: CMHT77633 indicates edges, while CMHT77620 and CMHT77621 indicate centers only. The Zircon W2 provides center-and-edge indications on shallow plans through 3/4 inch, while Wood Stud SuperScan's Auto mode is shallow center-and-edge, Edge is edge-only, and DeepScan gives a center cue rather than paired edges. These are model- and mode-specific descriptions, not guarantees through every wall. Read W2 · Read Wood Stud SuperScan · Open the same 0.7-inch both-cue scenario · Open the same 1.5-inch both-cue scenario.
Edges help define a span
On an edge-finding tool, follow the manual's direction of travel and mark the transition on both sides. Reversing direction or making a second pass can reveal whether a boundary is repeatable. If the tool only reports one edge, do not assume the member's center from a single beep; locate the other side using the prescribed scan procedure.
A center indication is useful after a candidate is established
Center-finding systems can estimate the middle of a detected stud from paired edge readings or a specific sensor arrangement. They can speed marking for a mounting point, but the center display is only as good as the underlying detection. Check that the exact model supports center indication, then confirm the boundary and repeat at the intended fastener height.A wide pattern is information, not object recognition
The Franklin Sensors M210's 21 LEDs display a full-width pattern and its product page lists a center indicator. Its manual says the instrument detects density differences; a pipe, wire, uneven paint or material irregularity can also illuminate LEDs. Read a wide or irregular pattern as a reason to inspect carefully, not as a certainty that you found a larger stud.Different scan modes answer different questions
A dedicated metal scan, a live-wire warning and a stud scan are separate functions. Check each mode's target, limits and method. A metal mode may not identify a wire; a live-wire alert does not reliably map all services; and stud mode may show other density changes. Compare a requirement only when the exact model documentation supports it.When a mount needs a precise center, combine the indicator with repeatable edge marks and a second scan direction. When the cost of a wrong hole is high, verify the structure and hidden utilities with independent methods before drilling.
Seventy-nine current-reference configurations have a documented edge indication, and 57 have both center and edge cues in a compatible plan. An edge or center mark describes a tool signal; it does not identify the hidden object or promise the same result through every surface.
Depth and indication must come from the same mode. At a 0.8-inch minimum, 49 configurations retain an edge cue, while 39 retain both center and edge cues; a deeper mode may keep center output but not paired edge signals. Compare edges at 0.8 inches or keep both cue types at that same threshold.
Including earlier models expands which exact identities can appear, but it does not transfer a cue from one surface or mode to another. Compare the model's supported surface and its own center/edge plan together. See the earlier-inclusive lath-and-both-cues result.
No StudBuddy model adds a separately sensed stud-edge cue. The Original's and Pro's magnetic catches identify likely fastener points; Pro's ruler and level are layout aids, while Spot's click and detachable Stud-Line do not mark a sensed edge. Read the separate Original, Pro and Spot limits, then keep the edge-cue requirement in the same finder.
Kreg KMM1000 and KMM1000LZ do not report sensed stud edges: the two magnets locate likely fasteners, and a centered body notch is only a layout mark. The LZ's projected line extends a located point rather than showing an edge boundary. See the KMM1000 and KMM1000LZ evidence and keep drywall plus edge indication in the same finder.
Seventy-nine of the 101 current-reference configurations document a stud-edge indication in a supported plan, including RYOBI ESF5002's broad graduated LED response. Its lights indicate the width across the stud rather than a dedicated edge tone; read the whole-width assessment. The five Zircon L-series models qualify at different depths: L20 and L30 stop at shallow StudScan; L40 and L50 retain edge cues in DeepScan to 1-1/2 inches; L70 has edges in shallow StudScan but a center-oriented deeper plan. The edge result contains 71 matches at 0.7 inches and 49 at 0.8; the deeper L70 plan cannot satisfy an edge request. Open the edge-indication finder · edges at 0.7 inches · edges at 0.8 inches.
The CRAFTSMAN CMHT77633 manual documents an edge light and tone through up to 3/4-inch drywall. It is not an electronic center indicator: the instructions derive a midpoint only after the user marks both edges. At 0.7 inches it remains in the edge-and-depth result; at 0.8 it drops above its 0.75-inch ceiling. Keep only the edge requirement selected · preserve edges and 0.7 inches together.
The StudMark 7310's magnets catch likely drywall fastener points, not separately indicated stud edges; it is therefore not a match when edge indication is essential. Compare the 7310's exact signal description with the CRAFTSMAN CMHT77633's documented edge light. Keep drywall and the edge requirement together in the same finder.
Seventy-nine of the 101 current-reference configurations document a stud-edge indication in a supported plan. The StudMark 7310 catches a likely fastener but does not mark or separately indicate stud edges. Read the 7310 assessment; keep the edge requirement selected by itself, or combine it with the known wall surface at drywall plus edges.
With edges and a 0.7-inch minimum, the CRAFTSMAN CMHT77633 is included on its 0.75-inch edge plan; center-only CMHT77620 and CMHT77621 are not. Its midpoint workflow does not turn it into a two-cue instrument. Read the exact CMHT77633 review and open the same edge-plus-depth result.
If edge marks are enough
Seventy-nine of the 101 current-reference configurations document an edge indication on a supported arrangement. Neither DEWALT model adds that cue: their instructions describe direction arrows guiding a center finding, not separate edges. Open the same edge-indication finder scenario.
Seventy-nine of the 101 current-reference configurations document an edge indication on a supported arrangement. MultiScanner 540 has edge-center-edge cues in StudScan and DeepScan; 440 and 340 identify edges in their stud modes; WM5 has an EDGE arrow in its single shallow mode. Their 0.75-inch StudScan limits and 1.5-inch DeepScan limits are not interchangeable, and WM5 has no deep mode. Open the same edge-indication finder scenario.
Edges with a 0.7-inch minimum return 71 configurations. The four MultiScanner/WM5 plans qualify through shallow 0.75-inch StudScan arrangements; the 540 also has direct center output, but its edge cue remains eligible for this edge-only request. The limit does not promise every wall reading. Keep edges and 0.7 inches selected.
At 0.8 inches with edges required, 49 plans remain. The 540, 440 and 340 qualify numerically through DeepScan, while WM5 drops above its sole 0.75-inch plan. The deep ceiling is not a promise that an edge cue will appear through a particular surface. Open the same edge-plus-0.8-inch finder result.
Seventy-nine of the 101 current-reference configurations document an edge indication on at least one eligible plan. The four electronic Klein models with supported drywall plans all document edge cues: the ESF050 has separate left, center and right indicators; the ESF200 uses five location LEDs; and ESF100 and ESF150LL use seven LEDs and edge/center notches. The first two state 3/4-inch wood depth; the latter pair state 1.5 inches. The magnetic MSF100 and MSF1002 do not join this cue set: each follows a metal point, and its marking notch is not a sensor-reported stud edge. The C.H. Hanson 3040 and 3047 are also magnetic fastener-point finders with no documented electronic edge indication; the 3047's hanger kit does not add one. The MultiScanner 540, 440, 340 and WM5 edge plans are included in the current set; their distinct limits are summarized above. Bosch's EXPERT D-tect18V-200-17C and D-TECT200C Object View modes document nearest edges of detected objects and a center line/cross in supported drywall arrangements; both have a 38 mm wood-beam limit. GMS 120, GMS120-27 and D-TECT120 document center cues but not separate stud-edge indications. The SuperScan K2 and K3 add edge cues in their TC, StudScan and DeepScan stud arrangements; the K3's separate Metal Scan is for metal targets, not a stud-edge mode. The W2 and Wood Stud SuperScan add supported shallow edge cues: W2 provides edges in TC, StudScan and shallow DeepScan, while the Wood Stud model's Edge mode gives edges and Auto includes both edges and center. Both manuals caution that the deeper 1.5-inch DeepScan is center-only or may not show edges; a maximum is not proof of a stud. Object boundaries are not proof of a stud, and an edge-only tool still requires a midpoint estimate from two marks. Compare the EXPERT D-tect18V-200-17C, GMS 120, GMS120-27 and D-TECT120 evidence; use the finder with edge indication preserved for the full current reviewed set.
The three page-two identities differ in operating details: SuperScan K4 separates wood-filtering Target Control from ordinary StudScan and DeepScan, StudSensor 70 changes to center-only High Sensitivity at depth, and HD900 OneStep has distinct shallow/deep stud and metal/AC modes. The SuperScan ID, A250 and x85 remain separate comparators. Open the finder with edge indication preserved.
Compare the Pro LCD, i65 and picture-hanging bundle beside the M3, M4, Pro SL, i520 and HD900c. Open the exact edge-requirement finder scenario.
Model-specific evidence: M3 review · M4 review · Pro SL review · i520 review · HD900c review · K1 review.
The eighteen Franklin models include the M5, whose manual explicitly describes simultaneous center-and-edge tracking, the T6 and T9, whose shared manual describes simultaneous center-and-edge displays, as well as the 710, 710+, M70, M90, M150, M155, M210, MAX, T11, T13, X1100, X2100, X700, X990 and X995. The A200, A250c, A150 and StudSensor Center also report both cues. The A100, StudSensor Basic, standard StudSensor, e30 and e50 report edges only; i320 reports both cues in shallow StudScan and center only in its deeper mode. Pro25 and Pro35 are edge-only shallow models; Pro45 stays edge-only in its separate StudScan and DeepScan plans. HD25 and HD35 are edge-only, HD55 reports edges in StudScan and DeepScan, and HD70 OneStep adds center and direction cues. The M10 and M10S manuals describe center only; the M50's five-light mapping is not established by its exact documentation. Both StudScout 2-Pack and single-unit StudScout mark magnetic fasteners but have no documented electronic edge indicator. Open the finder with the edge requirement.
All four DIY 2 and four DIY 2 M packages document an Expert Mode workflow for reading stud edges toward a center on maker-supported drywall: DIY 2 base · DIY 2 Essential · DIY 2 Deluxe · DIY 2 Premium · DIY 2 M base · M Essential · M Deluxe · M Premium. The accessory bundles differ, not the documented edge workflow; the view remains a signal interpretation. Use the exact edge requirement to see every matching configuration.
The Original and Pro respond to likely fasteners, and Spot's click/stick plus detachable Stud-Line mark candidate locations; none documents electronic stud-center and edge signals. Pro's level vials and Spot's line are not boundary sensing. Compare the three Original, Pro and Spot reviews and keep both center-and-edge cues selected in the same finder.
Neither Kreg magnet provides a direct center-and-edge indication. A centered marking notch locates the tool's mark, not the stud's sensed center; the LASER-MARK line is a layout aid after the magnets find a fastener. Compare the battery-free KMM1000 and laser-layout KMM1000LZ, then preserve drywall and both cue requirements together.
The CRAFTSMAN trio has no both-cues arrangement: CMHT77633 signals edges only, while CMHT77620 and CMHT77621 signal center only. RYOBI ESF5002 differs: its LEDs span the stud width and the full pattern around the marker signals center, so it provides both cues on its documented drywall plan. Read the exact ESF5002 assessment before treating its signals as object identification. Keep the both-cue requirement selected in the same finder.
The StudMark 7310 uses a magnetic catch at a likely fastener point and does not document both a stud-center and stud-edge indication, so it drops out when both cues are required. Compare its exact signal description with the RYOBI ESF5002's documented whole-width and center-marker plan. Keep drywall and both cues selected together.
Fifty-seven of the 101 current-reference configurations document both cue types in a supported plan. The StudMark 7310's package procedure marks likely drywall fastener points; it does not document a separate stud-center cue plus edge cue. Compare the exact 7310 assessment with the whole-width and center-marker plan; keep both center and edge indications selected by themselves or add the wall condition at drywall plus both cues.
A 1.8-inch numeric minimum plus both center-and-edge indications leaves the StudMark 7310 out twice: its maker documents neither a stud-depth ceiling nor those two electronic cues. Compare the 7310's magnetic signal limits with the MAX's documented mode and cue plan; keep both cues and the 1.8-inch minimum together.
For dry interior drywall plus both center and edge cues, RYOBI ESF5002 qualifies through one whole-width LED plan with a center marker; this is not a hidden-object identification claim. See the model assessment and open the same drywall-and-both-cues finder scenario.
At a 1.0-inch minimum, RYOBI ESF5002 still matches both center-and-edge requirements on its documented drywall plan; its marker indicates center while the graduated LEDs span the stud width. Read the exact model assessment and keep both cues and the 1.0-inch threshold together.
At 1.1 inches, RYOBI ESF5002 remains in the both-cue result at the 1.5-inch manufacturer-stated comparison ceiling. That statement is not a reading prediction through every wall. See the depth and indication limits and the same both-cue 1.1-inch finder scenario.
RYOBI ESF5002 matches both center-and-edge requirements at the lower numeric boundaries because its product-page wall-thickness limit is 1.5 inches; no separate material depth is published. Read the model assessment and compare the precise thresholds below.
RYOBI ESF5002 matches the both-cue arrangement at both 0.7 and 0.8 inches because its product-page wall-thickness limit is 1.5 inches. Read the model assessment and keep both cues and 0.7 inches selected together.
RYOBI ESF5002 matches the both-cue arrangement at both 0.7 and 0.8 inches because its product-page wall-thickness limit is 1.5 inches. Read the model assessment and keep both cues and 0.8 inches selected together.
RYOBI ESF5002's full-width LED signal supports an edge indication on its drywall plan, and its 1.5-inch ceiling exceeds the shallow thresholds. The maker does not promise detection at a particular wall thickness. Review the exact model assessment and compare the precise edge-only scenarios below.
RYOBI ESF5002's full-width LED signal supports an edge indication on its drywall plan, and its 1.5-inch ceiling exceeds both thresholds. The maker does not promise detection at a particular wall thickness. Review the exact model assessment and keep edges plus 0.7 inches selected together.
RYOBI ESF5002's full-width LED signal supports an edge indication on its drywall plan, and its 1.5-inch ceiling exceeds both thresholds. The maker does not promise detection at a particular wall thickness. Review the exact model assessment and keep edges plus 0.8 inches selected together.
Fifty-seven of 101 current-reference configurations document both center and edge indications on one compatible plan. Among the Zircon L-series models, only L70 OneStep StudScan qualifies; its paired cues are documented only in the shallow 3/4-inch arrangement, while DeepScan is center-oriented. Read the exact L70 review and keep drywall and both indications together in the finder.
Fifty-seven of the 101 current-reference configurations document both center and edge indications on one compatible plan; among the Zircon L-series models, only L70 OneStep StudScan qualifies. Its paired cues are documented only to 3/4 inch: its 1-1/2-inch DeepScan is center-oriented, so the both-cue result with a 0.7-inch minimum includes L70, but the 0.8-inch both-cue result does not. Keep both center and edge indications together in the finder · both cues at 0.7 inches · both cues at 0.8 inches.
If you need both center and edges
Fifty-seven of the 101 current-reference configurations document direct center and edge cues on a compatible plan. DW0100 and DW0150 each stop at a center mark and do not document independent edge readings, so neither adds a both-cue match. Keep the center-and-edges requirement in the finder.
Fifty-seven of the 101 current-reference configurations document direct center and edge cues on a compatible plan. Among the four Zircon models, only MultiScanner 540 qualifies: its instructions show an edge-center-opposite-edge sequence in both StudScan and DeepScan. 440, 340 and WM5 indicate edges; estimating a midpoint from two marks is a user calculation, not a direct center cue. Keep both tool indications selected in the finder.
Both center-and-edge cues with a 0.7-inch minimum return 49 configurations. MultiScanner 540 qualifies on its shallow StudScan plan, whose stated ceiling is 0.75 inch; its edge-only siblings do not satisfy the center requirement. Open the exact both-cue 0.7-inch finder case.
At 0.8 inches with both cues required, 39 configurations remain. MultiScanner 540 continues through its 1.5-inch DeepScan plan, which retains manual-described edge-center-edge cues. Its 440/340 siblings and WM5 remain edge-only and cannot be upgraded by midpoint arithmetic. Keep both cues and the 0.8-inch threshold together.
With both center-and-edge indications required and a 1.0-inch minimum, 39 configurations remain. The MultiScanner 540 qualifies through DeepScan at this threshold with direct edge-center-edge cues; 440, 340 and WM5 do not provide direct center output. Open the exact center-and-edge 1.0-inch finder result.
At a 1.1-inch minimum with both center and edges required, 37 configurations match. MultiScanner 540 qualifies through its 1.5-inch DeepScan plan with a documented edge-center-edge sequence; MultiScanner 440/340 and WM5 remain edge-only. Keep both cues and 1.1 inches selected.
Fifty-seven of the 101 current-reference configurations document both center and edge cues on a compatible arrangement. The MultiScanner 540 provides a direct center-and-edge signal; 440, 340 and WM5 report edges without the requested direct center cue. All four electronic Klein drywall models join this set: the ESF050 and ESF200 have 3/4-inch stated wood-stud ceilings, while ESF100 and ESF150LL state 1.5 inches; ESF200 alone among them documents a separate live-AC warning, and ESF150LL alone adds cross-line lasers. The magnetic MSF100 and MSF1002 remain outside because a magnetic attraction point and a physical marking notch do not provide a displayed center plus paired edge cues. C.H. Hanson's magnetic 3040 and 3047 likewise lack a documented electronic center-and-edge arrangement. Bosch's EXPERT D-tect18V-200-17C and D-TECT200C Object View arrangements join this set because their manuals describe nearest object edges plus a center line/cross on drywall; both 38 mm wood-beam plans fall below a 1.5-inch threshold. The K2 and K3 provide both cues on their documented stud plans, including DeepScan up to 1.5 inches; the instructions still caution about edge visibility on surfaces thicker than 3/4 inch. The W2 and Wood Stud SuperScan also document center-and-edge cues on their shallow stud arrangements, each through 3/4 inch; at the deeper 1-1/2-inch DeepScan threshold, both become center-only plans or carry edge visibility limits. K3's separate Metal Scan does not provide stud-edge cues. The older GMS 120, newer GMS120-27 and D-TECT120 show center-oriented displays but do not add a documented pair of stud-edge cues. Review the exact EXPERT model, GMS 120 and D-TECT120 limits, then keep both indications selected in the finder.
Compare SuperScan K4, StudSensor 70 and HD900 OneStep with the SuperScan ID, A250 and x85. Open the exact both-cue finder scenario.
Compare the i65's cue boundary with its exact review, then contrast the edge-only Pro LCD and picture-hanging bundle with the M3, M4, i520 and HD900c. Open the exact center-and-edge finder scenario.
Compare the separate mode arrangements: M3 review · M4 review · Pro SL review · i520 review · HD900c review · K1 review.
The eighteen Franklin matches comprise the M5, T6, T9, 710, 710+, M70, M90, M150, M155, M210, MAX, T11, T13, X1100, X2100, X700, X990 and X995. Add the A200, A250c, A150, StudSensor Center and HD70 OneStep for documented center-and-edge cues. M5's instructions explicitly describe a five-light arrangement. T6 and T9 use different sensor/display layouts. The standard StudSensor, A100, Basic, e30, e50, HD25, HD35 and HD55 are edge-only; i320 has both cues only in its shallow StudScan mode; the M10 and M10S manuals document center without both edges; the M50 sources do not map its five lights to both. Both StudScout packages remain fastener-based. A center cue helps mark a candidate but does not identify the object. Keep the full center-and-edge requirement in the finder.
The four DIY 2 and four separate DIY 2 M packages use Walabot’s documented center-and-edge interpretation workflow on supported drywall: DIY 2 base · DIY 2 Essential · DIY 2 Deluxe · DIY 2 Premium · DIY 2 M base · M Essential · M Deluxe · M Premium. Their accessories differ, not the maker-described cues; the display is not object verification. Use the exact center-and-edge finder option to see every matching configuration.
The Kreg models cannot satisfy an edge/center request plus a live-wire warning: neither documents a sensed stud-edge or center output, and KMM1000LZ's own Q&A says it does not distinguish fasteners from live electrical lines, conduit or plumbing. KMM1000 has no documented meter. Review both exact KMM1000 and KMM1000LZ limits; compare the same indication-plus-warning choices at edges or center and edges.
Combine the indication need with a live-wire cue
The C.H. Hanson 3040 and 3047 are outside both the edges-plus-meter and center-plus-edges-plus-meter results: their physical magnet and level do not document any electronic stud-edge/center signal or a live-wire meter. Keep both requirements together in the edge-and-wire or both-cues-and-wire finder scenario.
Thirty current-reference configurations document both center-and-edge indications and a live-wire warning on a supported plan. SuperScan K2 and K3 have limited WireWarning alongside supported stud cues; K3's Metal Scan is a separate target mode. Klein ESF200 is the only reviewed Klein model that pairs a dedicated live-AC warning with both cues, but its wood-stud ceiling is 3/4 inch and the warning may appear offset from a wire. Bosch EXPERT D-tect18V-200-17C and D-TECT200C pair a drywall Object View live-material cue with nearest-object edges and a center line/cross; their 38 mm wood-beam limits are below 1.5 inches. GMS 120, GMS120-27 and D-TECT120 have live-conductor indications but lack a documented separate edge cue. SuperScan K4 and HD900 OneStep document WireWarning in supported stud modes and both cues in shallow plans; their deeper edge visibility is cautioned. Alerts are not a safety clearance, and x85's AC search is separate from stud scanning. Compare the K2, K3, ESF200, EXPERT 18V and D-TECT200C assessments; keep both cues and a warning selected together.
Forty-three configurations match a request for edges plus a live-wire warning. K2 and K3 document edge cues and limited WireWarning on supported stud modes; the K3 metal-target scan is separate from that stud result. Klein ESF200 documents both edge/center location cues and a separate live-AC warning on the same shallow stud arrangement. Bosch EXPERT D-tect18V-200-17C and D-TECT200C add Object View comparisons: their manuals document nearest object edges, a center line/cross and live-material indication on drywall, with 38 mm wood-beam ceilings. The older GMS 120, GMS120-27 and D-TECT120 provide live-conductor cues and center guidance but not the required separate edge cue. SuperScan K4 and HD900 OneStep document WireWarning with both cues in shallow StudScan; deeper DeepScan edge visibility can be limited above 3/4 inch. StudSensor 70's deeper mode is center-only and its instructions give a 110–127 V optimum range. x85's AC search is separate; none of these warnings is a safety clearance.
K2 · K3 · Klein ESF200 · EXPERT D-tect18V-200-17C · GMS 120 cue limitation · GMS120-27 cue limitation · D-TECT120 cue limitation · SuperScan K4 · StudSensor 70 · HD900 OneStep · SuperScan ID · A250 · x85 separate-AC limitation · Pro LCD review · i65 review · M3 review · M4 review · Pro SL limitation · i520 review · HD900c review · K1 review. Open this exact finder scenario.
Model assessment links: Franklin Sensors ProSensor M155 · Franklin Sensors ProSensor M210 · Franklin Sensors ProSensor X2100 · Franklin Sensors ProSensor X995 · Zircon MultiScanner A200 · Zircon MultiScanner A250c · Zircon MultiScanner i320 OneStep · Zircon StudSensor A100 · Zircon StudSensor A150 · Zircon StudSensor Center · Zircon StudSensor e30 · Zircon StudSensor e50 · Zircon StudSensor HD35 · Zircon StudSensor HD55 · Zircon StudSensor HD70 OneStep · Zircon StudSensor Pro35 · Zircon StudSensor Pro45.At 0.7 inches, neither Kreg model enters an edges-plus-depth or both-cues-plus-depth result: Kreg's explicit 0.150-inch maximum fastener-burial figure is below the slider minimum, and the tools do not sense those cues. Read the KMM1000 depth limit and the KMM1000LZ's conflicting Q&A wording; keep edges plus 0.7 inches or both cues plus 0.7 inches in the same finder.
Indication needs do not erase depth boundaries
The C.H. Hanson 3040 and 3047 cannot join a numeric-plus-indication result: the reviewed sources publish no depth maximum and neither has an electronic center/edge signal. Compare them with the exact 0.7-inch both-cues finder and edge finder conditions.
The MSF100 and MSF1002 do not enter a both-cue depth result even at 0.7 or 0.8 inch. Their magnetic response does not publish an electronic center-and-edge display; the top notch locates a mark rather than reporting the center. Compare the MSF100 and MSF1002, then retain both requested cues at 0.7 inches or 0.8 inches.
With both center-and-edge cues and a 1.8-inch minimum, only the MAX Mode 2 plan remains in the reviewed set; its overall 2.5-inch figure must be read with the separate 1.75-inch wood-stud limit.
Use the MAX assessment to compare the arrangement, and see the exact center-and-depth result.
At 0.7 and 0.8 inches the magnetic MSF100 and MSF1002 may pass the standalone numeric screen, but neither counts when edge indication is required: the magnet follows ferrous points, while its notch and level serve only marking and alignment. See the single-unit MSF100 and two-unit MSF1002 evidence, and keep the selected indication with 0.7-inch or 0.8-inch finder scenario.
With edge cues and a 1.7-inch minimum, M210, X2100, T13 and MAX Mode 2 remain; the 710, 710+, T11 and X1100 top out at 1.6 inches, while M50, M70, M90, M150, M155, T6, T9, X700, X990 and X995 state 1.5-inch drywall maxima.
That edge result includes a tool whose extra center cue is not a mismatch. Compare the M210, X2100, T13 and MAX reviews, then open the finder with both choices.
With edges required and a 0.7-inch minimum, seventy-one plans remain. K2 and K3 add edge cues on supported TC, StudScan and DeepScan stud plans; their 1.5-inch DeepScan edge caveat remains important. All four Klein electronic models meet this shallow comparison, but ESF050/ESF200 top out at 3/4 inch for wood studs while ESF100/ESF150LL state 1.5 inches. Bosch EXPERT D-tect18V-200-17C and D-TECT200C add documented nearest object edges in drywall Object View, each with a 38 mm wood-beam ceiling; the GMS 120, GMS120-27 and D-TECT120 show center cues but do not add a stud-edge indication. SuperScan K4, StudSensor 70 and HD900 OneStep each have a supported 0.75-inch StudScan arrangement with edge cues; their separate deeper modes do not share identical cue limits. x85 has edges in ordinary 1-inch Stud Scan and at its conservatively matched 1.5-inch wood DeepScan limit. Pro LCD and i65 also pass through shallow plans, while the picture-hanging bundle is a separate 0.75-inch edge-only configuration.
K2 · K3 · ESF050 · ESF200 · ESF100 · ESF150LL · EXPERT D-tect18V-200-17C · GMS 120 cue limitation · GMS120-27 cue limitation · D-TECT120 cue limitation · SuperScan K4 · StudSensor 70 · HD900 OneStep · SuperScan ID · A250 · x85 · Pro LCD · i65 · Picture Hanging Kit. Open this exact finder scenario.
At 0.8 inches with edges required, forty-nine plans remain. K2 and K3 remain through their separate 1.5-inch DeepScan stud plans, with the maker's caveat that deep edges may not register through surfaces thicker than 3/4 inch. Klein ESF100 and ESF150LL continue with their 1.5-inch stud plans, while ESF050 and ESF200 drop out at 3/4 inch. Bosch EXPERT D-tect18V-200-17C and D-TECT200C Object View provide documented object-boundary/center guidance through 38 mm wood-beam ceilings; GMS 120, GMS120-27 and D-TECT120 do not document separate stud-edge cues. SuperScan K4 and HD900 OneStep remain through separate 1.5-inch DeepScan plans, which caution that edges may not show above 3/4 inch; StudSensor 70's edge-capable 0.75-inch StudScan no longer meets this minimum. ID and A250 retain deeper stud arrangements, and x85 still uses ordinary Stud Scan through 1 inch; its deepest wood arrangement is conservatively treated as edge-capable.
K2 · K3 · ESF100 · ESF150LL · EXPERT D-tect18V-200-17C · GMS 120 cue limitation · GMS120-27 cue limitation · D-TECT120 cue limitation · SuperScan K4 · StudSensor 70 · HD900 OneStep · SuperScan ID · A250 · x85 · Pro LCD · Pro SL · M3. Open this exact finder scenario.
With both center-and-edge indications required and a 1.0-inch minimum, thirty-nine reviewed configurations remain. K2 and K3 meet the depth through separate DeepScan stud plans and document center/edge cues; the deeper-edge visibility caveat remains, and K3's metal-target mode is not stud depth. Klein ESF100 and ESF150LL join with seven-LED edge/center displays and 1.5-inch stud plans; ESF050 and ESF200 stop at 3/4 inch for wood studs. Bosch EXPERT D-tect18V-200-17C and D-TECT200C Object View arrangements qualify with nearest object edges and a center line/cross in drywall; each 38 mm wood-beam limit is below 1.5 inches. GMS 120, GMS120-27 and D-TECT120 document center cues but not both required stud cues. SuperScan K4 and HD900 OneStep meet the threshold in their 1.5-inch DeepScan plans; their manuals caution that deeper edges may not show above 3/4 inch. StudSensor 70's center-only 1.5-inch High Sensitivity arrangement fails the selected both-cue requirement, so it is not counted. ID and A250 also support both cues through 1.5 inches; x85 meets the 1-inch boundary in ordinary Stud Scan, not its conservative edge-only deep arrangement.
K2 · K3 · ESF100 · ESF150LL · EXPERT D-tect18V-200-17C · GMS 120 cue limitation · GMS120-27 cue limitation · D-TECT120 cue limitation · SuperScan K4 · StudSensor 70 · HD900 OneStep · SuperScan ID · A250 · x85 · M3 · M4 · HD900c. Open this exact finder scenario.
At a 1.1-inch minimum with both center and edges required, 37 configurations match. K2 and K3 qualify through 1.5-inch DeepScan stud plans with both cues, subject to the instructions' caution about edge visibility through surfaces thicker than 3/4 inch. Klein ESF100 and ESF150LL qualify on their 1.5-inch stud plans; ESF050 and ESF200's 3/4-inch wood-stud ceilings do not. Bosch EXPERT D-tect18V-200-17C and D-TECT200C document Object View pairings through 38 mm wood-beam plans, below a 1.5-inch minimum. GMS120-27's 30 mm (about 1.181 inches) depth reaches 1.1 inches, but like GMS 120 and D-TECT120 it lacks the required documented edge cue. SuperScan K4 and HD900 OneStep qualify through 1.5-inch DeepScan plans, though their instructions caution that edge indications may be lost above 3/4 inch. StudSensor 70's deeper 1.5-inch arrangement is center-only; ID, A250, M3, HD900c and i520 have their own qualifying plans, while x85 falls out above 1 inch under the conservative edge-only deep interpretation. These are documented-plan comparisons, not predictions of a wall reading.
K2 · K3 · ESF100 · ESF150LL · EXPERT D-tect18V-200-17C · GMS 120 cue limitation · GMS120-27 cue limitation · D-TECT120 cue limitation · SuperScan K4 · StudSensor 70 · HD900 OneStep · SuperScan ID · A250 · M3 · HD900c · i520. Open this exact finder scenario.
With both center-and-edge cues required at a 0.7-inch minimum, forty-nine reviewed configurations match. K2 and K3 document both cues in their supported stud modes, including their distinct 1.5-inch DeepScan plans; edge visibility may be limited above 3/4 inch. All four Klein models meet the threshold, with ESF050 and ESF200 at a 3/4-inch wood-stud ceiling and ESF100/ESF150LL at 1.5 inches; ESF200 alone adds a live-AC warning and ESF150LL alone adds layout lasers. Bosch EXPERT D-tect18V-200-17C and D-TECT200C Object View document nearest object edges and a center line/cross in their drywall arrangements, each with a 38 mm wood-beam limit; GMS 120, GMS120-27 and D-TECT120 do not document separate stud-edge cues. SuperScan K4 and HD900 OneStep support both cues in shallow StudScan; StudSensor 70 also has both edge and center cues in its 0.75-inch arrangement. Their higher-sensitivity behavior differs: K4/HD900 DeepScan retain nominally both cues with edge caveats, while the 70's deep setting is center-only.
Compare the Klein ESF050, ESF200, ESF100 and ESF150LL with the EXPERT 18V object-view limits, GMS 120 and D-TECT120, plus K2, K3, SuperScan K4, StudSensor 70, HD900 OneStep, SuperScan ID, A250, x85, the i65 review and M3; open the exact both-cue finder scenario.
At 0.8 inches with both cues required, thirty-nine configurations remain. K2 and K3 meet the comparison through their 1.5-inch DeepScan stud plans, but the manuals caution that edges may not show above 3/4 inch. Klein ESF100 and ESF150LL meet this threshold on their 1.5-inch stud plans; ESF050 and ESF200 stop at 3/4 inch for wood studs and fall out at this setting. Bosch EXPERT D-tect18V-200-17C and D-TECT200C qualify through Object View object-edge and center-line/cross guidance on 38 mm drywall wood-beam plans; GMS120-27, the older GMS 120 and D-TECT120 have center cues but not the documented separate stud-edge cue. SuperScan K4 and HD900 OneStep meet the numeric threshold through DeepScan and document both cues, with a caution that edges may disappear beyond 3/4 inch. StudSensor 70's shallow both-cue StudScan stops at 0.75 inch, and its deeper setting is center-only; it therefore does not meet this selected combination. ID and A250 retain both cues; x85 still qualifies through ordinary Stud Scan.
Read K2, K3, the Klein ESF100 and ESF150LL limits beside the Bosch EXPERT 18V Object View limits, GMS 120 and D-TECT120, as well as the SuperScan K4, StudSensor 70, HD900 OneStep, ID, A250, x85, i65 and StudSensor Center; open the exact both-cue finder scenario.
At a 1.6-inch numeric-only minimum with both center and edge indications, nine reviewed plans remain, including T9 only through its separate conditional lath-and-plaster plan; this is not a 1.6-inch drywall claim.
Review T9's distinction between its 1.5-inch general product-page maximum and conditional 1.6-inch plaster statement, alongside the M210 and X2100. T6's 1.5-inch drywall limit no longer qualifies. Open the exact center-and-edge, 1.6-inch numeric-only result.
Older Walabot image cues do not mean edge marks
The original Walabot DIY, DIY Plus and Plus X describe a stud-center cue in the app, but the reviewed exact-model sources do not establish a stud-edge indicator; none is a substitute for a required center-and-edge tool. The Plus and Plus X can appear in an earlier-inclusive lath scenario, but their center-only cue and unknown numeric stud limit remain separate conditions. Compare the original DIY, DIY Plus and Plus X assessments, and preserve both requirements in the earlier-inclusive center-and-edges finder.
The earlier S300's direct center-and-edge cue
The exact STHT77407 instructions describe center and both edge indications in one pass in STUD mode, with a 1-1/2-inch maximum through drywall. This differs from the edge-only S100 and S150, whose procedures estimate a center from two marks. The S300's separate 3-inch METAL SCAN value is not stud depth, and AC TRACKING is a distinct mode—not an additional simultaneous signal in this stud plan. Read the S300 assessment and keep its earlier scope, drywall, both cues and 1.5-inch threshold in the same finder. The equality is a manufacturer maximum comparison, not a predicted result.
An earlier STANLEY model with both stud cues
Among the earlier STANLEY models, the FatMax 400 manual documents both center and edge cues, but its generic model record is excluded from buying matches because CPSC recall applicability depends on an unverified exact unit date code. The 77-115, 77-100, 77-110 and 77-075 use edge-oriented signals, while STHT77587 and STHT77588 describe center-only LEDs. For models that remain in the earlier-inclusive shortlist, compare the S300 mode notes and Franklin M210 assessment; retain the 77-730 review as a recall and mode reference only. Keep the earlier, drywall and both-cue requirements together.