Socket tester, automatic current circuit tester, 48-250V polarity voltage detector, Huabo HT107E, HT107D and HT107B

Simple and safe to use: Plug-and-play design. Even beginners can use it easily.

Circuit troubleshooting: In case of a wiring problem, the screen quickly turns orange.

Residual current device (RCD) testing: This circuit tester tests RCDs by simulating earth faults.

Clear and easy-to-understand instructions: 6 LED display modes. The tester has clear and easy-to-understand diagrams to help you determine the condition of the socket's internal wiring based on the LED indicators.

Usage: The tester is designed to indicate test results using 6 different LED light patterns, making it easy to read results such as: correct, open earth, open neutral, reverse, reverse neutral, reverse earth missing. It is also effective in dark environments thanks to its bright indicators.