Features:Uses: It can detect cables, wires, water supply pipes buried in walls or underground; interruption and short circuit of cables and wires buried in walls. Detects fuses and distributes current circuits; detects interruptions and short circuits in underfloor heating.Receiver sensitivity can be adjusted manually or automatically. Can automatically scan frequency. Both transmitter and receiver can work in quiet mode.Working principle: According to the change of the signal, the specific position and fault of the buried cable or pipeline can be detected.Application: installation and maintenance of weak current systems, communication lines, integrated wiring circuits, computer networks, and other metal wire circuits.USB direct charging: 1400mAh battery, long use time and longer battery life.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementMeasuring range: 200mMeasurement accuracy: 0.01Power supply voltage: 220 (V)Size: 10*26cm