The Breaker ID Pro Circuit Breaker Finder Kit is a complete circuit-finding tool kit. Use the Breaker ID Pro Kit to find circuit breakers in residential, commercial, and industrial environments. Connect the transmitter to the circuit and scan the breaker box with the included receiver. On the first scan, the tool calibrates to the circuit breakers, and on the second scan, it takes what it learned and indicates the target. (During the first scan, the CF Breaker ID Pro may indicate more than one breaker as it memorizes each circuit.) A green LED light and audio signal will identify the correct breaker so you won't need to haphazardly guess and cut power to essential appliances that shouldn't be turned off. The Breaker ID Pro Kit is packaged in a lockable case and includes clips and blades to most outlets, including 230 and 240 volt industrial. The kit also contains light socket and 120 V AC plug adapters for use with finished circuits.