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Receptacle and GFCI Testers

29 products

Get an outlet and GFCI tester from Grainger to help detect problems with electrical circuitry. An outlet tester with GFCI can determine whether electrical receptacles are providing power and that they are properly wired for safe operation. Choose the tester with the voltage range that can fit your applications. Shop Grainger today for high-quality outlet and GFCI tester options.