12V Car Electronic Relay Tester Battery Checker with Clips Auto Relay Diagnostic Tool

This tester is designed to examine the condition of your car relay. It tests to properly check the opening and closing of the relay. If the relay is malfunctioning, the red LED will light up; if it's working correctly, the green LED will light up. It offers a practical, intuitive, quick, and economical diagnostic tool. Small in size and compact, it's easy to carry, allowing you to test it wherever you want.