GFCI Outlet Tester with LCD Display, 3-Prong Receptacle Wiring Detector, Voltage

Note: Testing regular outlets may cause wiring to trip, so use caution. GFCI Outlet Tester with LCD Display. Why Choose Our GFCI Outlet Tester?. Power Source: Battery Powered Item model number: KT301T Style: GFCI Outlet Tester Batteries: 2 AAA batteries required (included).

eBay