UNI-T UT25A UT25A/B Automatic Circuit Breaker Finder Socket Tester with LED Indicator Professional circuit breaker finder with stable performance and accurate test. Suitable for house, office, factory power network reconstruction, etc.Features:Find circuit breaker or circuit fuse quickly and accurately.Sensitivity can be adjusted through the ON/OFF switch.The operator can determine the status of circuit connection according to the 3 LEDs.NCV indicator light is only for UT25B.Support GFCI test on socket.The receiver is powered by a 9V battery(not included).The transmitter works on 110-125V.Specifications:Receiver:Type: UT25A / UT25B(optional)Operating Voltage: 90-120VOperating Frequency: 50-60HzNCV Working Voltage: 80V (only for UT25B)Receiving Distance: 30MPower Supply: 1 * 9V Type 1604/6F22 Battery(not included)Operating Temperature: 5°C-40°CTransmitter:Working Voltage: 110-125VOperating Frequency: 50-60HzFuse: 1A, 250V, Dia.:4*11mmReceiver Size: 19 * 5 * 3cm / 7.48 * 1.97 * 1.18inReceiver Weight: 91g / 3.22ozTransmitter Size: 10.5 * 5 * 2.5cm / 4.13 * 1.97 * 0.98inTransmitter Weight: 79g / 2.81ozPackage List: 27.5 * 16 * 4cm / 10.83 * 6.3 * 1.57inPackage Weight: 261g / 9.25ozPackage List:1 * Circuit Breaker Finder(Receiver)1 * Socket Tester(Transmitter)1 * User Manual