Franklin Sensors ProSensor M70 Stud Finder
- 7 sensors across the face
- Up to 1.5 in deep detection
- Wood and metal studs
- No calibration, start anywhere
- Two AAA batteries (not included, no rechargeables)
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A multi-sensor stud finder that shows the full width and center of studs without calibration. It needs standard alkaline AAA batteries, not rechargeables, and they are not included.
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ASIN: B0B1GVTLN2Model: ProSensor M70Category: Stud Finders
Overview
Seven sensors in a row read the wall at once, so the Franklin ProSensor lights LEDs across the full width of each stud. You press and hold the button anywhere, even over a stud, and the center LED turns green at the middle.
Seeing the whole stud at once, without sliding back and forth to find edges, is the reason to buy. It finds wood and metal. Batteries are extra and rechargeable cells will not work.
Who it's for
Homeowners and installers mounting heavy items on drywall will find studs quickly. People who also need AC wire detection should choose a multi-function scanner.
Pros and cons
- Shows full stud width
- Center indicator LED
- No calibration needed
- Finds wood and metal
- Batteries not included
- No rechargeable batteries
- No wire detection listed
Performance notes
Accuracy comes from comparing readings across seven sensors at once, so starting position does not matter. Thick plaster or dense walls beyond the detection depth reduce readings. Fresh alkaline batteries keep it reading consistently.
Specifications
| Brand | Franklin Sensors |
|---|---|
| Model | ProSensor M70 |
| Display Type | LED, green center indicator |
| Number of sensors | 7 |
| Detects | Wood and metal studs |
| Scanner Type | Multi-sensor stud finder |
| Sensing Distance | Up to 1.5 in |
| Batteries | 2 AAA (not included, not compatible with rechargeables) |
| Operation Mode | Single always-on deep scan, no calibration |
Frequently asked questions
How deep can the Franklin ProSensor M70 detect?
Up to 1.5 in.
Does the Franklin ProSensor M70 need calibration?
No. Press and hold the button to start scanning anywhere.
Can I use rechargeable batteries in the Franklin ProSensor M70?
No. It needs two AAA batteries, not included, and is not compatible with rechargeables.