Franklin Sensors ProSensor M210: Stud Finder Review
Worth it if it fits your wall
Worth it or skip it?
Worth it if
- You want a compact electronic tool that shows stud width and center for drilling into wood or metal studs.
Skip it if
- Your intended wall target is beyond the stated 1.7-inch sensing distance or you cannot supply two AA batteries.
Key facts
Stated sensing distanceThis is the listed depth limit to match against your intended wall target; performance in every wall condition is not established.
A practical fit, with one check
Choose the M210 when that width-and-center readout suits your drilling plans and your wall target falls within the stated 1.7-inch sensing distance. Remember, two AA batteries are required but not included.
Buy on AmazonRead the wall before drilling
You press the button against the wall, watching a row of LEDs mark the stud’s span before the drill goes in.
Width first, center next
The M210 uses 13 sensors, while its LED display shows the full detected stud width and places the middle LED at the center. It detects wood and metal studs; deep scan is stated as always on up to 1.7 inches, with no calibration required according to the seller.
You get a width-and-center indication to work from, rather than treating one detected point as the stud edge.
Before you choose
Does it detect both wood and metal studs?
Yes. The seller states that the M210 detects both wood and metal studs.
Does it show the full width of a stud?
The seller states that its LED display shows the whole stud, including double studs, with the middle LED indicating the center.
How deep can it detect?
The listed sensing distance and seller claim state detection up to 1.7 inches; performance at every wall condition is not established.
Full spec sheet
| Current Rating | 150 milliamps |
|---|---|
| Lower Temperature Rating | 32 °F |
| Maximum Supply Voltage | 3 volts |
| Measurement Accuracy | 1.7 |
| Mounting Type | Wall Mount |
| Output Type | Push Button |
| Sensing Distance | 1.7 inches |
| Specific Uses For Product | Wall Drilling Jig Electrician |
| Upper Temperature Rating | 110 °F |
| Material Type | Plastic |
| Style Name | Compact |
| Item Dimensions | 7.5 x 3.35 x 3.33 inches |
| Item Weight | 11.36 ounces |
| Brand Name | Franklin Sensors |
| Model | 317740851 |
| Number of Items | 1 |
| Item Highlight | High-Accuracy Stud Finder Wall Scanner, Wood and Metal Stud Detector, Made in the USA, Shows Full Width of Studs |
| Unit Count | 1 Count |
| Included Components | Range |
| Part Number | FSM21012HD |
| Brand | Franklin Sensors |
| Item dimensions L x W x H | 7.5 x 3.35 x 3.33 inches |
| Material | Plastic |
| Style | Compact |
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