Equip yourself with a reliable tool to detect cables and other objects hidden in walls, floors or ceilings. Habotest's 4-in-1 cable detector makes accurate repair, installation and maintenance work easier and safer. With four detection modes (metal, wood, AC and hollow), you can quickly and accurately find hidden objects, and the easy-to-read LCD display allows you to conveniently read the result. The device is made of durable ABS plastic, so it is strong. Its power supply requires a 9V 6F22 battery (not included).