Franklin Sensors ProSensor M150/X990 Stud Finder
- 9 sensors scan across the wall
- 1.5 inch sensing distance
- AC wire warning built in
- Wood and metal studs detected
- 5.51 x 2.99 x 2.01 inches, digital output
- Made in the USA
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A multi-sensor stud scanner that flags wood, metal and live AC wire, in a compact plastic body. The listing does not say what batteries it uses or what is in the box.
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ASIN: B0917TH83LModel: ProSensor M150/X990Category: Stud Finders
Overview
Not a single-point beeper, this stud finder reads the wall with a bank of sensors and reports wood and metal studs on a digital readout. It also warns when it detects live AC wire, and the housing is compact plastic.
The reason to look at it is the multi-sensor approach with a wire warning, which cuts down on guessing where the framing runs. The limitation is a thin listing that leaves the power source and box contents unstated.
Who it's for
A homeowner or renter marking studs before drilling will use the digital display and wire warning. A contractor scanning deep or layered surfaces should look at a tool that lists deeper range and power details.
Pros and cons
- Multiple sensors scan together
- Warns about live AC wire
- Detects wood and metal
- Compact body fits a hand
- Battery type unspecified
- Box contents unclear
- Weight not listed
Performance notes
The sensors read changes in wall density across the scan area, so the tool can show a stud edge rather than a single beep point. The sensing distance caps how thick a surface it can read through, and results depend on the wall surface being flat.
Where it stands among stud finders
- #10 most-searched brand and model of the 16 stud finders lines we track (by search demand, not sales).
From the specs of the 37 stud finders we list; not a test result.
Specifications
| Brand | Franklin Sensors |
|---|---|
| Model | ProSensor M150/X990 |
| Dimensions & fit | |
| Item dimensions | 5.51 x 2.99 x 2.01 inches |
| Capacity & performance | |
| Output Type | Digital |
| Construction & materials | |
| Material Type | Plastic |
| Included components | |
| Included Components | Range |
| Other details | |
| Number Of Items | 1 |
| Sensing Distance | 1.5 inches |
| Style Name | Compact |
| Item Highlight | Wood and metal studs, AC wire |
Frequently asked questions
What comes in the box with the Franklin Sensors ProSensor M150?
The listing does not itemize the box. The included components field reads only Range, so batteries and accessories are not confirmed.
Does the ProSensor M150 find metal studs?
The title calls it a wood and metal stud detector with an AC wire warning.
How deep does the ProSensor M150 scan?
The listing gives a sensing distance of 1.5 inches.