DUOYI
DUOYI DY207A Electrical outlet tester Automatic Wall Plug Breaker Finder Polarity RCD Test Phase Check Loop Test Detector UK/US
DUOYI DY207A Electrical outlet tester Automatic Wall Plug Breaker Finder Polarity RCD Test Phase Check Loop Test Detector UK/US
DUOYI DY207A Electric Socket Tester Automatic Wall Plug Breaker Finder Polarity RCD Test Phase Check
Loop Test Detector US/UK
3 IN 1 Parameter reference
RCD TEST
If the wiring is correct, press the button and the power will trip immediately. If it does not trip, it means that the trip switch is aging and malfunctioning. It is recommended that you replace it immediately to avoid serious consequences.
