GFCI Outlet Tester, DURFICST Electrical Outlet Tester with 1.7'' High Definit...

Manufacturer ‏ : ‎ DURFICST. For your convenience. Note: Use caution when using this function with regular. ELECTRICAL PROBLEM TESTERThe DURFICST electrical outlet tester uses standard U.S. 3-wire and GFCI-protected 120-volt AC receptacles.

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