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Klein Tools Receptacle Testers are designed to detect the most common wiring problems in standard and GFCI receptacles. GFCI OUTLET COMPATIBLE: Confirms the proper operation of ground fault protective devices in GFCI outlets.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.