Features. Quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit to which an electrical outlet or fixture is connected. Tester consists of two parts: a Transmitter, connected to the electrical outlet or fixture and a Receiver, used to scan the panel to locate the correct breaker. Receiver delivers clear visual and audible indications when the correct breaker has been located. Operates on 90-120V AC circuits. Transmitter incorporates a GFCI outlet tester to inspect the wiring condition at the electrical outlet and test GFCI devices. Transmitter docks in the Receiver for convenient storage as a single item when tester is not is use. Transmitter incorporates a three-pin plug for connecting to North-American-style grounded electrical outlets Specifications. Weight: 0.7 lbs