Automotive Relay Tester Price

This is an easy to use automotive 12v Relay Tester It is powered by the vehicle's battery and can quickly test whether a relay is. Automotive Relay Tester introduction CNBJ 707 is a quick go/no-go tester for relays that provides you with an indication of the.

In this video I make a tester for 4 and 5 pin relays It is a simple project to build and is well worth making if you find yourself testing. I have had this tool for many years now Works great definitely worth the money Makes checking and testing relay circuits simple.