Klein’s ET310 tester is a two-part tester with a plug-in transmitter that docks in the receiver for easy storage. With it, you can test GFCI outlets in the 90-120V AC range.
The receiver gives and audible and visual signal with the test results. Interpretation of the results is clearly labelled on the GFCI test transmitter.
Test for common wiring faults such as improper grounding, hot connections and more!