Automotive Electronic Relay Tester Car Battery Checker LED Indicator Light Universal 12V Car Relay Tester Auto Diagnostic Tools

Description:It is a quick go/no-go tester relays that provides with indication of the general health and functioning of the most common Automotive relays. Tester will check for proper functioning of the relay contacts by connecting the car battery (11V--15V) to the relay coil. Tester will watch the pin configuration,the time to contacts closure and opening, consistency of the relay during each test session, Tester will light the GREEN LED if all passed during the test session,if not light the RED LED. Introduction:1. Connect the power leads to the car battery --black alligator clip to negative terminal, red alligator clip to positive terminal.2. Tester is powered up when the LED illuminates in RED.3. Check the relay before plugging into the tester. If it's a 4 pin relay,select"4 pin" on the tester.If it's a 5 pin relay, select"5 pin"on the tester.4. Plug in the relay into one of the three receptacles.5. Press the "TEST" button.6. Tester will check the pin configuration of the unknow