Features:
Continuous tone for a good indication (handy for mcb locating)
Warbling tone indicates a fail condition
Advanced electronics allows clear indication even on noisy circuits
Three colour LEDs show fault location
Indicates good and 17 fault conditions
A built in self-test gives confidence of operation
True Earth loop impedance test
Simple loop results. LED colour GOOD, CHECK or URGENT CHECK
30 mA RCD operational check
Incoming supply polarity test