Car Relay Diagnostic Tool Piece Car Relay Tester Car Battery Tester with Clips for Auto Repair 12V Electronic Relay Checker <p>Wide Application: Wide range of applications, suitable for most car lights, wipers, starters, air conditioning, power seats, power doors and windows, anti-lock brakes, audio relays.</p> <p>High Quality Material: The car repair tester is made of high quality ABS, lightweight, wear-resistant and corrosion-resistant, suitable for long-term use.</p> <p>Excellent Performance: The tester checks the proper functioning of the relay contacts by connecting the car battery (11V-15V) to the relay coil. Small size, compact structure, lightweight, easy to carry, can be tested anytime and anywhere.</p> <p>Indicator Light: Equipped with an LED indicator, the test result can be easily detected. When the green light is on, the test battery is normal, and when the red light is on, the test battery is defective.</p> <p>Easy to Use: Simply connect the tester to the car battery and the test results can be obtained easily and quickly after a while.</p>