The Greenlee 5708 and 5708-I GFCI circuit testers are intended to verify the operation of a three-wire 120 Volt ground fault circuit interrupter that has a standard (NEMA 5-15R) receptacle. They also verify that the wiring is correct by performing a simple check that detects most common wiring faults on three-wire circuits.

OGT1943: This item features: -Allows instant testing of GFCI receptacles or GFCI circuit breaker protected circuits. -Checks 120VAC grounded outlets for correct/incorrect wiring. -Indicates whether a GFCI will trip at 3, 5, 7, or 10mA. -Voltage: 120.00 VAC. -Type: 120 VAC Power Plug. -Wt.: 1/2 lb. -Price is for 1 Each.