Franklin Sensors ProSensor M210
This tool uses advanced sensors and a wide LED array to instantly detect studs with unmatched accuracy and consistency.
Buy on AmazonFranklin Sensors has a reputation for making some of the best stud finders on the market, and the ProSensor M210 is their flagship model. Building on the success of the popular 710 and 710+ (the latter adding a bubble level), the M210 brings upgrades that set it apart—not just within Franklin’s own lineup, but across the entire category.
At the heart of the M210 are 13 precision sensors capable of detecting studs up to 1.7 inches deep, with a scan width of 7 inches. That’s more coverage and depth than many entry-level models offer—and you don’t need to toggle between deep and shallow scan modes. It’s always on, always ready.
What really sets the M210 apart is its upgraded LED array: 21 LEDs compared to the 13 on the 710 series. When it detects a standard stud, five LEDs illuminate across its width, making it much easier to pinpoint the exact center.
Operation is dead simple. No calibration required—just place it flat on the wall, press the central button, and slide it slowly to find your target. If there’s a live AC wire behind the drywall, the center indicator will light up to warn you. The built-in bubble level is a nice touch for drawing accurate horizontal lines, whether you’re marking a single stud or across the entire width of the device.
The M210 shines in drywall, where it consistently delivers fast, accurate results. That said, if you’re working with plaster and lathe, you may want to reach for a metal scanner like the Zircon m4. Like most electronic stud finders, the M210 isn’t ideal for older wall types.
Overall, the ProSensor M210 is a high-performance tool built for professionals and serious DIYers who want speed, accuracy, and simplicity in one sleek device.