The Amprobe ST102B Receptacle Tester w/GFCI is designed for proper wiring and operation. It features easy to read light indicators that display common wiring problems and also confirm GFCI socket is wired for protection. Moreover, it has GFCI circuit trips that confirm the tester is working properly, and can be used with 110125 VAC electrical systems.
Tests standard & GFCI sockets/outlets/receptacles for proper wiring (110-125V AC)
Verify proper wiring of GFCI (ground fault circuit interrupter) and standard US and Canadianwall outlets with a simple push of a button
Detect five different wiring faults [open ground, open neutral, open hot, hot/ground reverse, and hot/neutral reverse]
UL and CSA listed for safety