YOJOCK Socket Tester RCD Plug Outlet Tester, Electrical Receptacle Detector with LCD Display, 90-250V Power Socket Automatic Electric Circuit Polarity Voltage Detector Plug Breaker Finder

Simple and Safe Operation: Plug and play design. YOJOCK socket tester are equipped with an color LCD display, showing at a glance if the socket is wired properly (Green for Good, Orange for wiring problems), even laypeople can use the outlet tester to quickly and accurately check the voltage and wiring status.

Electrical Problem Checker: Should wiring issues arise, the screen will promptly indicate in orange. The three indicator lights alert you to 6 potential wiring errors, namely 1. CORRECT; 2.OPEN GROUND; 3.OPEN NEUTRAL; 4.LIVE/GRD REVERSE; 5.LIVE/NEU REVERSE; 6.LIVE/GRD REVERSE; missing GRD.

One-Click RCD Test: Press the RCD button and check if the trip breaker is functioning. If the socket trips, that means the power leakage protection function is good. Be careful of using this function on normal receptacles, it may cause house wiring System to trip.

Clear and Understandable Instructions: An easy-to-understand chart on the tester helps determine wiring conditions in the outlet, based on LED light results. This makes it possible to quickly and accurately determine the wiring errors and avoid potential danger.

Safety Certificate & Service: This socket tester with conforms to CAT II 300V and CE-Marking. Guaranteed for one year. The socket tester is ideal for electrical maintenance testing, testing office sockets, power strips and sockets in laboratories, factories and homes.