Klein Tools Digital Circuit Breaker Finder is a useful tool for checking the condition of wiring in an outlet and testing devices. It is suitable for both professionals and amateurs, allowing for efficient electrical troubleshooting. The device operates on 90-120V AC circuits and consists of 2 parts. The transmitter is equipped with a three-pin plug for connection to grounded electrical outlets and is powered by the circuit, while the receiver scans the panel, producing a clear visual and audible indication when the desired switch is detected. The tool is a compact storage solution, providing the ability to mount the tester in the receiver. Also, it automatically turns off after three minutes of inactivity to save battery power.