Feature 1Quickly and easily identify correct circuit breaker or fuse, protecting a specific electrical circuit 2Sensitivity can be adjusted through the ON/OFF switch 3The operator can determine the status of circuit connection according to the 3 LEDs 4Features visual flashing light and an audible beeping to alert you when the correct breaker is identified 5Professional tool for house, office, factory power network reconstruction, etcDescription: By using a transmitter and receiver, this circuit breaker finder quickly and easily identifies individual branch circuits at the panel box without interrupting power. It is the best way to accurately locate circuit breakers. They are compact in size and extremely easy to use. Features: Quickly and easily identify correct circuit breaker or fuse, protecting a specific electrical circuit. Sensitivity can be adjusted through the ON/OFF switch. The operator can determine the status of circuit connection according to the 3 LEDs. Features visual flashing light and an audible beeping to alert you when the correct breaker is identified. It is convenient to test out whether the socket/plug is safe. Professional tool for house, office, factory power network reconstruction, etc. Specification: Receiver Type UT25A / B Operating Voltage 90-120V Operating Frequency 50-60Hz Power Supply 1 x 9V Battery(Not Included) Operating Temperature 5-40 Storage Temperature -20-60 Transmitter Working Voltage 110-125V Operating Frequency 50-60Hz Fuse 1A, 250V, 4x11mm(dia) Receiver Size(appr.) 19 x 5 x 3cm / 7.5 x 2.0 x 1.2" Package Weight(appr.) 262g Package Included: 1 x Circuit Breaker Finder (Receiver) 1 x Socket Tester (Transmitter) 1 x User Manual .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }