Sound Troubleshooting, Automotive Relay Tester, 4 & 5 Pin 12V Auto Diagnostic Tool, Handheld Small Car Tester with Battery Clips, Test Kit

Easy to Use The tester will automatically detect the pin position, action release time and relay consistency in each test phase. If the tester illuminates the green LED light, the relay is normal; if the red LED light is on, the relay is abnormal. The relay extractor makes it easy to remove the relays to be tested. Quick Operation First, fasten the tester alligator clip to the car battery, the black clip on the negative pole and the red clip on the positive pole. When the red LED light is on, the tester is ready to start the test. Move the 4 pin/5 pin switch to match the number of pins on the relay. Select the appropriate socket according to the relay pins and configuration and insert the relay into the socket. Press the "Test" button and the tester will automatically start operating the relay several times while checking all relay operations. VERSATILE FIT - Suitable for most general purpose automotive relays on the market. When testing, it must be connected to the 11V-15V car battery. The car battery must be a 12V battery, and the battery voltage should be between 11V-15V; 2. The applicable coil resistance is preferably greater than 20 ohms. *Not for use with all BMW relays COMPACT DESIGN - Our automotive relay tester is small and easy to carry for on-the-go jobs or for easy storage. Its compact design allows for easy use no matter where you are. SIMPLE AND EFFECTIVE - With our patented design, this relay tester will give you the results you need quickly and easily. A red light means the relay is bad, and a green light means the relay is good