Seller notes

Introducing the Sound Troubleshooting™ 12V Automotive Relay Tester designed to quickly and easily test most modern automotive relays. - Easy To Use - The tester will automatically detect the pin position, the release time of the action, and the consistency of the relay in each test phase. If the tester lights up the green LED light, the relay is normal; if the red LED light is on, the relay is abnormal. - To Operate - First, clip the alligator clip of the tester to the car battery, the black c...

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