Automotive Relay Tester Diagnostic Readers Review

[ Advantage] Relay Tester Kit can quickly detect whether your relay is normal. It is easy to use, good time saver, suitable for general-purpose automotive relays on the market. When testing, it needs to be connected to the car's 11V-15V battery. Note: 1. The car battery must be a 12V battery and the battery voltage must be between 11V-15V; 2. The applicable coil resistance is preferably above 20 ohms. [Operating Instructions]: First, clip the alligator clip of the tester 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, it means the tester can start the test. Check the relay before testing. Select the appropriate socket according to the pins, insert the relay into sockets, press the "Test" button, and the tester will automatically detect the pin position of the unknown relay. [Function, Automatically Detect] It activates the coil and checks continuity on the switch side 10 times in a row. If it detects a failure even 1/10 times, you get a red light to indicate bad relay. If it works on every actuation, you get a green light indicating good relay. This method of testing is more accurate than the old fashioned way. [Portability] small size and compact structure, which is easy to carry and use. You can test anywhere you want. [Quality materials]: relay test kit is made of plastic and metal material, solid and practical, fine workmanship and good performance, durable for a long time, the clip is made of insulating material to ensure safety, good bite, and accurate testing.