This sensor can be used to detect wall studs, metal pipes, and electrical wires. It will remind you with the sound signal and lighting when it detects wall studs, metal pipes, and electrical wires. The ergonomic design makes it comfortable to use. Locates the edges of wood or metal studs up to 3/4 inch (20 mm) deep. Perfect tools for the home renovation and decoration.
Material: ABS Color: as shown in pictures Model: TS-78B Detection sensitivity (depth): up to 20 mm/ 0.79 in LED light: green and red Power supply: 9V 6F22 battery (not included) Size: about 140*60*25 mm/ 5.51*2.36*0.98 in Quantity: 1PC