Product Features: Provides line tracing and detection to confirm the relationship between circuit breakers and individual outlets. Once the transmitter is in place, it transmits a signal to the circuit that the receiver can detect. When a signal is detected, the receiver beeps and its green LED flashes. The sensitivity of the receiver can be adjusted to accurately determine the circuit breaker or fuse protecting the selected circuit. Find specific breaker or fuse Used to protect an over-current LED indicator Exchangeable power tips Adjustable receiver sensitivity Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on voltage: AC110V / AC220V Material: plastic colour: Yellow+black<br><br>Package Contents: 1 x Circuit Breaker Transmitter 1 x Circuit Breaker Reciever 1 x 9V (6F22) battery 1 x power plug 2 x Lamp Socket Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.