Universal Electronic Automotive Relay Tester Battery Checker for Cars Auto Best
1 x Relay Tester. Front Shockers Struts For Fiat 500 312_ 2007-2021 1.2 Hatchback 333766 333767. If the relay is abnormal the red LED will light, it's normal the green LED will light. The coil resistance is preferably above or equal 20 ohms.