ACCURATE: More sensors = More accuracy. Conventional stud finders have 1 or 2 sensors. The ProSensor 710+ has 13, making it the most accurate stud sensing tool on the market. The ProSensor 710+ has a max detection depth of 1 3/5". The LEDs track the location of studs while displaying the center and edges simultaneously. EASY: One mode finds it all! The ProSensor 710+ adjusts for a variety of depths, materials and textures. No calibration required. Press and hold the button to begin scanning. Unlike other stud sensors that give false readings, the ProSensor 710+ allows you to start scanning anywhere, even over a stud. DISPLAYS FULL STUDS: The ProSensor 710+ displays the center and edges of studs simultaneously, showing single studs, double studs, and irregular configurations that other stud finders cannot detect. Works through drywall/sheetrock and more! DURABLE: #1 Rated by consumers and professionals, the ProSensor 710+ stud finder is both accurate and durable. EXTRA FEATURES: Integrated Ruler and built-in Bubble Level. Requires two AA batteries (not included). Is NOT compatible with rechargeable batteries.