PRODUCT DESCRIPTION: Circuit breaker are very convenient safety devices used to protect an over-current situation in your electrical system. Find specific breaker or fuse that controls your wall socket or plugs, lightings, etc. Included Lamp Socket & Outlet Adapters makes this tool more dynamic. Once the transmitter is in placed it transmits a signal onto the circuit which can be detected by the receiver. The reciever will then beep and its green LED will flash when the signal is detected. The sensitiviy of the reciever can be adjusted in order to pinpoint the exact circuit breaker or fuse protecting the selected circuit where the transmitter is attached. No more guessing or trial and error when it comes to locating the correct circuit breaker supplying power to an AC outlet or lighting fixture. NOTE FOR BUYERS : Also available in 220V . ( please click here if you want to buy 220V ) Features: Automatically and quickly finds correct breaker Work for either circuit breakers or fuses Exchangeable power tips for the transmitter Specifications: Transmitter Input Voltage:110Vat 50~60Hz Size : 80 x 50 x 31mm Weight : approx. 55g Receiver Battery : 9V (6F22 or equivalent) Size : 186 x 90 x 38mm Weight : approx.150g Set includes: 1 x Circuit Breaker Transmitter 1 x Circuit Breaker Receiver 1 x 9V (6F22) battery 1 x English Instruction Manual 1 x110V Outlet Adaptor 2 x Lamp Socket Adapter Carrying Bag Standard Packaging Box