Earth Ground Tester

Product Code: GNDTest
Product Condition: New
Units in Stock: 1

This tester checks the ground for low resistance. It does this by sending current though a light bulb. If the light bulb is bright as it can be then the ground has its lowest resistance and is good for grounding in ESD situations. You can use it to test the ground between the tab on the 2-prong adapter and the screw on the outlet plate in houses that don't have the 3-prong outlet. You should choose between 60w through 150w standard light bulbs. DO NOT USE LED OR CFL BULBS. This tester doesn't test for GFCI or tests the 2-prong connection.Its main purpose was to test to see if the ground on outlets is wired correctly. Takes standard light bulbs.

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$0.25 inc. tax

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