Automotive Relay Tester Tool , 12V/24V Car Relay Tester, , Code Readers and Scan Tools, Diagnostic, Test and Measurement Tools

First, clip the alligator clip of the tester to the car battery, the black clip to the negative pole, and the red clip to 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 the sockets, press the "Test" button, and the tester will automatically detect the pin position of the unknown relay.

DESCRIPTION:

• Couldn't seem to know the details and condition of your electrical relay? Want to prevent your car relay from going faulty without warnings? Relay Tester is the best choice that you can go for!

• Relay Tester is able to accept 3 different specifications of relay pins. Relay switching with 4 or 5 pins is usable on the tester.

• It is a quick test tool to test automotive relays and determine their status. If the relay test is abnormal, the light red LED is bright; if it is normal, the green LED is lit.

FEATURES:

• 3 different specifications of relay pins (4-pin/5-pin switching)
• Connect the wire to the car battery and press the TEST button to start the test.
• Through the car battery (12V-24V) to the relay coil, the detector can properly check the relay contact function.
• LED display, clear instructions, LED green light indicates normal, red light indicates relay failure.
• Observes contact data, closure time, relay inertia at each test stage, etc.
• Comes with a rubber-sleeved battery clip, safe to use
• Compact size, lightweight, and portable

PACKAGE:

• 1 x Relay Tester

Don't Get Stranded in the Cold: Instant Relay Diagnostics Is your car refusing to start on a freezing morning? Is it the battery, the starter, or just a cheap relay? Stop guessing. This 2025 Upgraded Automotive Relay Tester is your first line of defense this winter. It instantly identifies faulty relays, saving you from expensive tow truck fees and unnecessary trips to the mechanic.

The Only Tester You Need: 12V & 24V Support Most testers only handle standard cars. Ours goes further. Whether you are working on a family sedan (12V) or a heavy-duty truck, RV, or boat (24V), this versatile tool handles it all. It’s the professional-grade solution that fits right in your glovebox, ready for any vehicle in your driveway. 

No Mechanic Experience Required You don't need to be a pro to use this. With its intuitive interface, diagnostics are as simple as pressing a button. The clear LED indicators give you an instant verdict: Green means the relay is functioning perfectly, while Red warns you of a failure. Pinpoint the problem in seconds, not hours.
Built for the Garage: Rugged & Reliable Cheap tools break; this one endures. Featuring a reinforced seam design to prevent wire breakage and heavy-duty insulated alligator clips for a secure connection, this tester is built for the harsh environment of a workshop or a roadside emergency. It delivers consistent, accurate results every time you clamp it on.
Built for the Garage: Rugged & Reliable Cheap tools break; this one endures. Featuring a reinforced seam design to prevent wire breakage and heavy-duty insulated alligator clips for a secure connection, this tester is built for the harsh environment of a workshop or a roadside emergency. It delivers consistent, accurate results every time you clamp it on.

【Compatibility】: Supports both 12V and 24V car relays, making it versatile for use with a wide range of vehicles.

【Diagnostic Precision】: Offers accurate and reliable testing results, helping to identify faulty or underperforming relays with ease.

【User-Friendly Interface】: Designed for simplicity, it allows even beginners to easily understand and operate the tool without extensive training.

【Portable Design】: Lightweight and compact, this tool is easy to carry, making it ideal for on-the-go diagnostics and quick checks.

 The Practical Gift for Every Car Owner Looking for a gift that a man will actually use? Forget the socks. This Relay Tester is a thoughtful gift for fathers, husbands, or any DIY enthusiast. It’s not just a gadget; it’s a tool that provides peace of mind and saves money on repairs. A must-have addition to any toolbox this year.

 

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Tips: Handmade props have slight differences, the actual object shall prevail. Due to different measurement methods, there will be a measurement error of 1-3CM, if you are not clear, please contact our online customer service. Hope you can understand!

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💎If you don't have a positive experience for any reason, we will do whatever it takes to make sure you are 100% satisfied with your purchase.