Usage Tips:Features:<br > 1. The circuit breaker finder can automatically adjust sensitivity and<br > find the target circuit breaker or fuse quickly.<br > 2. The socket tester can test whether triangle socket connection is<br > correct and 3 indicator lights can show you the socket condition.<br > 3. With flashlight, convenient to use in the dark environment.<br > 4. Support low battery warning.<br > 5. Suitable for power grid rebuilding and engineering acceptance in<br > office, home, factory, etc.<br > Specification:<br > : MASTECH<br > Model:<br > MS5902<br > Working Voltage:<br > AC 220V<br > Plug<br > Type:<br > EU plug<br > Material:<br > ABS<br > Color:<br > Black + Green<br > Receiver<br > Power Supply: 1 x 9V Battery (<br > Not<br > included<br > )<br > Receiver<br > Size: 20*3.8*5cm / 7.9*1.5*2.0in<br > Socket<br > Tester: 6.3*7*5.5cm / 2.5*2.8*2.2in<br > Packet<br > Weight: Approx. 298g/10.5oz<br > Package list:<br > 1 * Socket<br > Tester with Transmitter<br > 1 * Circuit<br > Breaker Finder with Receiver<br > Note:<br > When the yellow LED is on, please replace the<br > battery in time.