Original StudSensor™ 1
Product PhotoThe Original StudSensor 1 stud finder includes automatic calibration and finds wood or metal studs up to 3/4" deep. The top LED lights when you find the edge of a stud.

Dimensions: 2.6 in. W x 5.6 in. H x 1.0 in. D
6.6 cm W x 14.2 cm H x 2.54 cm D
Weight: 3.3 oz. (94 g) without battery (99.2 g)
Battery Type: 9-volt alkaline (not included)
Battery Life: One year at 10 minutes/day use
Sensitivity: The center of a wood or metal stud can be found through common interior surfaces up to 3/4 inch (2 cm) with 1/8 inch (3 mm) accuracy using the dual scan and mark procedure.
Note: Sensing depth and edge detection can vary due to moisture content of materials, wall texture, paint, etc.