Klein Tools GFCI Receptacle Tester

The Klein Tools RT250 is a GFCI outlet receptacle tester that tests the wiring conditions at an electrical outlet and inspects GFCI devices. It detect and identify common wiring faults. The LCD displays the voltage, identifies the wiring fault, and the time required to trip a GFCI device. It is designated for use with North American 3-wire 120V electrical outlets.

Includes Klein Tools RT250 GFCI receptacle tester ($20), instructions, and carrying case ($10).
Klein Tools RT250 GFCI Receptacle Tester