Bought 6 of these--you can't see the bulb light through the heavy blue plastic.Returned for credit--got an RMA from company but never received credit on credit card--been 1 month.Click Here to see more reviews about: Lisle 26200 Continutiy Tester
Product Description:
Just clip lead to one end of wire in question.Probe other end of wire.If bulb lights up, there is continuity.
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