Klein Tools RT250 LCD Display GFCI Outlet Tester

GFCI Receptacle Tester features a large backlit LCD readout of voltage and clear indication of wiring conditions LCD readout shows the time required to trip a GFCI device Detect and identify common wiring faults Patent pending detection of Open Neutral Open Ground wiring fault Auto-Hold is convenient for hard-to-reach outlets Bright green and red LEDs illuminate for visual indicators CAT II 135V safety rating Durable 6.6 ft. (2 m) drop protection For use on 3 wire, North American 120V electrical outlets only