Franklin Sensors makes some of the best stud finders in the world. The Franklin ProSenor M210 is the brandโs top-of-the-line stud finder and is very similar to the impressive 710+. Weโre taking a closer look at what sets this model apart within Franklinโs lineup and against its stiff competition.
Using the Franklin ProSensor M210 Stud Finder

Franklinโs 710/710+ (one has a bubble level and the other doesnโt) became one of the industryโs top professional stud finders and the M210 builds on that success. It has 13 sensors capable of scanning 1.7 inches deep and covering a 7-inch width. Thatโs deeper than many entry-level stud finders detect and itโs always on, so you donโt need to worry about switching between shallow and deep scanning.
The big departure between the two is that the M210 includes 21 LED stud sensors instead of 13. When you locate a standard stud, 5 LEDs cover it, giving you a more precise center location.
Thereโs no need to calibrate the M210. Just set it flat against the wall, press the button in the center and slowly move it across the wall until you find the stud youโre looking for.
If thereโs a live AC wire behind the drywall, an indicator in the center lights up to let you know.
Thereโs also a built-in bubble level to help you mark straight across the stud or the entire length of the M210โs housing.
This model is a rock star when it comes to detecting studs in drywall. However, itโs not the best option if youโre dealing with plaster and lathe. Most electronic stud finders struggle with that material, and we find itโs best to use a metal scanner such as Zirconโs m4 to get more consistent results.
Key Highlights
- 13 sensors
- 1.7-inch deep scan (always on)
- Detects wood and metal studs
- Detects live AC
- 21 LED stud indicators
- Full-width stud sensing
- Powered by 2 AA batteries
- No calibration required
- Pencil caddy
- Built-in bubble level
- Made in the USA
- $62.99
Franklin ProSensor M210 Stud Finder Price
As the flagship stud finder in Franklinโs lineup, the M210 is also the most expensive. It runs $62.99 and includes a 3-year warranty. Like all of its stud finders, this is a Made in the USA product that uses global materials in its construction.
