Klein Tools GFCI Tester

Klein Tools Receptacle Testers are designed to detect the most common wiring problems in standard and ground fault circuit interrupter GFCI receptacles. A convenient chart on the tester helps determine wiring condition in outlet, based on lights results. Conditions indicated: open ground, reverse polarity, open hot, open neutral, hot/ground reversed.|GFCI Outlet Tester detects the most common wiring problems in standard and GFCI receptacles|Electrical outlet tester works on GFCI outlets and confirms operation of the ground fault protective device|Built to withstand a 6.6 ft. (2 m) drop|Operating temp: 32-Degree to 140-Degree Fahrenheit (0-Degree to 40-Degree Celsius)|Nominal Voltage: 110/125V AC at 50/60Hz in 3-wire outlet