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Multi-Tester is a electronic device that tests a body of water, like a swimming pool/hot tub and metal objects to see if the water/object is grounded to earth ground.  It is powered by an off-the-shelf 9V alkaline battery that does not draw power when not in use.  It can operate independently and also be used to test the operational status of the Shock-Guard™ 24/7 by providing an electrically induced charge to the Shock-Guard™ 24/7 unit causing it to go off. The unit may have other commercial and industry uses and there are no moving parts.

Multi-Tester tests water/objects for grounding

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