product information Automotive Relay Tester 1. It can quickly detect whether the relay is normal. When using a simple test, it needs to be connected to the 11V-15V battery of the car The tester will automatically detect the pin position, the time of action release and the consistency of the relay in each test stage. 2. If the green light of the tester is on, it means that the relay is normal, and if the red light is on, it means it is not normal. 3. The car battery must be a 12V battery, and the voltage of the battery must be between 11V-15V. 4. The applicable coil resistance must be above 20 ohms. 5. Easy to operate, high efficiency, 4-pin and 5-pin can be tested. 6. Humanized, easy to operate, just connect the wire and TEST button to start the test. 7. Small size, light and portable, easy to carry and easy to use. Size: 20*13*3cm Packing: as shown in the picture