The Stanley Intelli Tools Stud Sensor 300 uses OnePass™ centre-find technology to locate edges of studs, joists or live AC wires through drywall or other common building materials. Once the edge of the stud has been detected, the Stud Sensor 300 displays red LED's and sounds an audible tone. It has a V-shaped marking channel with an LED, that allows for accurate marking.
It can perform a deep metal scan of up to 75mm (3in). The sesnsor has a backlit LCD screen that is ideal for low light conditions and an ergonomic design with soft grip to ensure comfortable use.
Max Detection Depth: Wood/Metal Stud: 38mm (1.1/2in), AC Current: 50mm (2in).
Input Power: 1 x 9 Volt Battery (Not Included).