The IDEAL 61-532A is a 120V AC circuit breaker finder that automatically identifies a circuit breaker or fuse protecting a live branch circuit. It consists of a transmitter and a receiver. The transmitter identifies the presence of power via a red LED and sends a signal over the conductors when connected to an energized circuit. The receiver reads the transmitter's signal and identifies the breaker/fuse energizing the circuit by illuminating a red LED and emitting continuous beep once it determines the breaker/fuse with the strongest signal.