Stanley 77-050 Advanced Stud Sensor
- 3/4 in detection depth
- Wood and metal studs
- LED display and face indicators
- 2.4 ounces, 4 x 8.3 x 1.1 in
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A basic stud sensor that finds wood and metal studs behind standard drywall with clear LED cues. Its shallow detection depth will not see through thick plaster or layered walls.
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ASIN: B001DD9RFCModel: 77-050Category: Stud Finders
Overview
Sliding it across drywall, the Stanley stud sensor lights up its LED display as it passes the edge of a wood or metal stud. Indicators on the face show where to mark before hanging shelves or TVs.
Simple operation and clear LED feedback make stud finding quick on standard walls. It detects both wood and metal. Shallow sensing limits it on plaster or double drywall.
Who it's for
Renters and DIYers mounting decor on single-layer drywall suit it. Older homes with plaster walls need a deeper-reading scanner.
Pros and cons
- Detects wood and metal studs
- Clear LED readout
- Light and pocketable
- Simple to use
- Shallow detection depth
- No AC wire detection listed
- Battery type not stated
Performance notes
The sensor reads changes in wall density, so calibrating on an empty section first gives cleaner edges. Shallow range means it misses studs behind thick surfaces. Marking both edges finds the stud center.
Specifications
| Brand | Stanley |
|---|---|
| Model | 77-050 |
| Dimensions & fit | |
| Item dimensions | 4 x 8.3 x 1.1 inches |
| Item weight | 2.4 ounces |
| Capacity & performance | |
| Output Type | Digital |
| Construction & materials | |
| Material Type | Plastic |
| Included components | |
| Included Components | STUD ENSOR 50 |
| Unit Count | 1 Count |
| Warranty & support | |
| Warranty Description | Warranty |
| Other details | |
| Display Type | LED |
| Sensing Distance | 0.75 inches |
| Specific Uses For Product | Stud detection, construction, DIY |
| Item Type Name | Advanced Stud Sensor |
| Style Name | Classic |
Frequently asked questions
Will the Stanley 77-050 find studs behind plaster?
It detects wood and metal studs up to 3/4 in deep, so thick plaster may exceed its range.
Does the Stanley stud sensor find metal studs?
Yes. It detects wood and metal studs.
How does it show a stud?
An LED display and visual indicators on the face.