Suitable for 230V 13A UK wall sockets, the Kewtech Loopcheck 107 Socket Tester can check for correct wiring and polarity. A multicoloured LED display can show whether wiring is correct and the pattern of the lights will indicate the nature of any faults found (save for earth-neutral reverse). Additionally, an audible buzzer will also alert the user to problems. Having performed a polarity test, the tester will then perform an earth loop impedance test and indicate whether a check or urgent check is needed. With a rapid testing process, the socket tester is ideal for quickly checking multiple sockets.