1. The 4-in-1 stud finder is used to detect the center position of the wooden stem, the metal position and the live wire in the wall of wood, gypsum board and other materials, and it has an AC warning function. 2. The center gear of the wood stem: 3/4 in. (19mm), 11/2 in. (38mm) 3. Measuring metal gear: 2.36 in. (60mm) 4. Live wire in the measuring wall: 2 in. (51mm) 5. Display: LED LCD green backlit screen 6. Power supply: a 6F22 9V battery (the product does not include the battery) 7. Material: PC/ABS 8. Dimensions: 172 x 76 x 37 mm 9. Weight: 160 grams
