Advanced RCD Electric Socket Tester Automatic Neutral Live Earth Wire Testing Circuit Polarity Detector Wall Plug Breaker Electric Leakage Test with Voltage Backlight LCD Display

Electric Socket Tester - Advanced socket tester for rapidly detecting whether the socket's wire connection is correct or not.
Design with RCD/GFCI Test Button - Power outlet socket for correct wiring and RCD/GFCI trip function. It can test the protection system to ensure the household electrical safety. Perfect for protect your security against the risk of electric shock.
Easy to Use - Detect whether neutral, live and earth wire is connected correctly and to indicate which wire is missing with clear light patterns.
Bright LED Light & 3 Test Indicators - The light patterns are well labeled on the surface of the socket tester. The tester adopts a built-in light so it can also be used in the dark. Easy and fast to read the test result.
7 LED Light Patterns - With 7 easy to read indicators to indicate the state of the socket, easy to judge: Correct, Open Ground, Open Neutral, Live/Neutral Reverse, Live/Ground Reverse, Open Live & Live Neutral Reverse.