Universal 12V Car Battery Tester Car Accessories LED Display Relay Tester

CNBJ-707is a quick go/no-go tester relays that provides with indication of thegeneral health and functioning of the most common Automotive relays.Tester will check for proper functioning of the relay contacts byconnecting the car battery (11V--15V) to the relay coil. Tester willwatch the pin configuration,the time to contacts closure and opening,consistency of the relay during each test session, Tester will light theGREEN LED if all passed during the test session,if not light the REDLED. Introduction: 1.Connect the power leads to the car battery --black alligator clip tonegative 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 pinrelay,select"4 pin" on the tester.If it's a 5 pin relay, select"5 pin"onthe 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 unkno