Power supply: 1.5v battery
Size: Transmitter: 75x31x22mm Reveiver:181x82x43mm
Functions:Check wiring error in 5E, 6E, coaxial cable and telephone line,Locate the wiring or connection error,Measure cable length and determine the distance of open circuit and short circuitFar-end recognizer with prompting voice
Self-checking function and automatically compensate any change in battery