US
Franklin Sensors

Franklin Sensors ProSensor M210 Stud Finder

  • 13 sensors, shows full stud width
  • 1.7 inch sensing distance
  • Live wire detection included
  • Wood and metal studs detected
  • 3 volts maximum supply voltage
  • 11.36 ounces, 7.5 x 3.35 x 3.33 inches

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A larger multi-sensor stud finder that maps each stud edge to edge and flags live wire. It is a plastic hand tool with a push button, and the listing gives no battery details.

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ASIN: B0917VXLDKModel: ProSensor M210Category: Stud Finders

Overview

Scanning across a wall, this stud finder uses many sensors to show the full width of each stud rather than a single mark. A push button starts the reading, and the listing adds live wire detection and wood and metal stud sensing.

The reason to consider it is the full stud width display plus live wire alerts, which help with drilling jigs and electrical work. The limitation is the bulkier body and a listing that skips power source specifics.

Who it's for

A remodeler or electrician marking studs and checking for live wire will use the wide scan and edge display. A casual user hanging a single picture can use a smaller, simpler detector.

Pros and cons

Pros
  • Shows full stud width
  • Live wire detection
  • Wood and metal detection
  • More sensors across the scan
Cons
  • Larger than compact finders
  • Battery details unspecified
  • Accuracy figure has no unit

Performance notes

A bank of sensors measures density changes across the scan area, so both edges of a stud register and the tool can display its width. The sensing distance limits how thick a wall it can read, and a flat surface gives the cleanest results.

Where it stands among stud finders

  • #3 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

BrandFranklin Sensors
ModelProSensor M210
Dimensions & fit
Item dimensions7.5 x 3.35 x 3.33 inches
Item weight11.36 ounces
Capacity & performance
Output TypePush button
Lower Temperature Rating32 °F
Upper Temperature Rating110 °F
Power & efficiency
Maximum Supply Voltage3 volts
Construction & materials
Material TypePlastic
Compatibility & installation
Mounting TypeWall mount
Included components
Included ComponentsRange
Unit Count1 Count
Other details
Sensing Distance1.7 inches
Style NameCompact
Specific Uses For ProductWall drilling jig, electrician
Current Rating150 milliamps

Frequently asked questions

Does the ProSensor M210 work on metal studs?

The title calls it a wood and metal stud detector with live wire detection.

What does the ProSensor M210 show on the wall?

The listing says it shows the full width of studs, using 13 sensors.

How deep can the ProSensor M210 scan?

The sensing distance is listed as 1.7 inches.