Feature:1. Simple to use, connect the tester to the car battery, and the test results can be obtained after a period of time, which is convenient and fast2. Equipped with LED indicator light, the test result can be easily known. When the green light is on, it proves that the test battery is normal, and when the red light is on, it proves that the test battery is faulty3. Made of high quality ABS, light weight, wear resistant and corrosion resistant, suitable for long term use4. Small size, compact structure, light weight, easy to carry, can be tested anytime and anywhere5. Wide range of applications, suitable for most car lights, wipers, starters, air conditioners, electric seats, electric doors and window, anti lock brakes, audio relays6. Tester will check for proper functioning of the relay contacts by connecting the car battery (11V15V) to the relay coil.Specification:Item Type: Car Relay TesterMateiral: ABSWeight: Approx. 232g / 8.18ozPurpose: 12V start up battery testing for gasoline vehicles, vehicles, and motorcycles.Package List:1 x Car Relay Tester1 x Manual