12V Automotive Relay Tester, Universal Car Battery Checker, Electronic Car Relay Analyzer, Diagnostic Tool with Alligator Clips

The car relay tester is a handy tool for car repairs. You can test car relays, car batteries, alternators, and more. It accurately checks the opening and closing of car relays. Easy to use.

This 12V car relay tester features an LED indicator: red indicates abnormal operation, green indicates normal operation.

Provides a convenient and intuitive diagnostic method, saving time and money.

Small size, compact structure, easy to carry, allowing you to test anywhere.

Note: The car battery must be a 12V battery with a voltage between 11 and 15V. The coil resistance should preferably be at least 20 ohms.