Kewtech
Advanced Socket Tester with Mains Polarity, Loop and RCD Check
Advanced socket tester with loop check, RCD and mains polarity.
Unlike a standard socket tester, the Loopcheck 107 conducts an earth loop test to indicate the quality of the earth loop.
This socket tester will also indicate the very dangerous situation if the mains polarity has been switched at the incomer
and also allows you to perform an RCD test.