Amprobe ECB50A Circuit Breaker Finder Traces connection between circuit breaker and outlet, locates energized cables behind walls, and finds a specific wire in a bundle of wires Transmitter emits a coded signal for accurate location of the circuit breaker, wire, or cable Liquid crystal display (LCD) on the receiver shows the coded signal when the correct breaker, wire, or cable has been found Low-battery indicator signals when the meter's batteries need to be replaced Meets International Electrotechnical Commission (IEC) safety standard 61010, and is certified for category III installations up to 300 volts (V) for the transmitter and up to 150V for the receiver