The Best Relay Tester of 2023 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Relay Tester of 2023. Check our ranking below.
2,381 Reviews Scanned
- QUICKLY TEST RELAYS OUTSIDE OF THE VEHICLE to check coil and switch contact function
- NO NEED TO CLAMP TO BATTERY - self-contained, accurate testing with instant results
- GREEN LED PASS & RED LED FAIL clearly indicates good or bad relay condition
- TESTS MOST COMMON 12 VOLT 4 & 5 PIN AUTOMOTIVE RELAYS found on today's vehicles
- COMPACT, ALL-IN-ONE DESIGN powered by included AA batteries
- EASY TO USE - The tester will automatically detect the pin position, the release time of the action, and the consistency of the relay in each test phase. If the tester lights up the green LED light, the relay is normal; if the red LED light is on, the relay is abnormal. The relay puller makes it easy to remove the relays to be tested.
- FAST OPERATION - 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, 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 begin to operate the relay several times while checking all operations of the relay.
- VERSATILE FITMENT - Suitable for most general-purpose automotive relays on the market. When testing, it needs to be connected to the car's 11V-15V battery. 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. *Not intended for use with all BMW relays*
- COMPACT DESIGN - Our automotive Relay tester is small and easy to carry around for on-the-go jobs or for easy storage. Its compact design allows 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 that the relay is bad, and a green light means the relay is good!
- EASY TO USE - The tester will automatically detect the pin position, the release time of the action, and the consistency of the relay in each test phase. If the tester lights up the green LED light, the relay is normal; if the red LED light is on, the relay is abnormal. The relay puller makes it easy to remove the relays to be tested.
- FAST OPERATION - 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, 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 begin to operate the relay several times while checking all operations of the relay.
- VERSATILE FITMENT - Suitable for most general-purpose automotive relays on the market. When testing, it needs to be connected to the car's 11V-15V battery. 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. *Not intended for use with all BMW relays*
- COMPACT DESIGN - Our automotive Relay tester is small and easy to carry around for on-the-go jobs or for easy storage. Its compact design allows 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 that the relay is bad, and a green light means the relay is good!
- Improved test finds bad relays effectively
- Full 7+ amp load flags intermittently failing relays
- Three test results - Green/Pass, Red/Fail & Yellow/Pass with caution
- Greater coverage, tester alone checks 7 different 12 Volt relays
- Fully automated, 10 cycle test verifies the condition of the relay
- Tests 5 different relays, both 12V and 24V
- 3 diagnostic trouble codes help define the cause of the bad relay
- Kit Includes 5 Relay Adapters and blow mold case
- Quick off-the-car relay tester - checks relay coil & switch contacts
- Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
Last update on 2025-07-19 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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