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Ideal for trailer wiring, it can be tested along the vehicle without having to find a suitable ground point. If it is an open circuit, neither of LED light will not light. The indicator light is a considerate working guide to facilitate the smooth operation of detection.
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.