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Automotive Relay Tester

Automotive Relay Tester

 7,500+ Verified customers
Regular price $29.90
Regular price $29.90 Sale price $59.95
SAVE 50% Sold out

⚡ Spot issues instantly with one tool!

🔴 Fast diagnostics for your car’s electrical system!

🔧 Save time and money on repairs!

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Automotive Relay Tester

Automotive Relay Tester

Regular price $29.90
Regular price $29.90 Sale price $59.95
SAVE 50% Sold out
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How to Use?

To use the tester, follow these steps:

  1. Select the appropriate relay type (4PIN or 5PIN) using the selector switch.
  2. Attach the alligator clips to your car battery terminals (positive to positive, negative to negative).
  3. Connect the relay to the tester, ensuring it is securely placed.
  4. Turn on the tester and observe the LED indicator. A green light indicates the relay is functioning properly, while a red light signals a faulty relay.
  5. Follow the same process for testing additional relays, adjusting the selector switch as needed.

It's simple, fast, and efficient for diagnosing relay issues in your vehicle.

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Which relays work with this tester?

This tester is designed to work with both 4-pin and 5-pin automotive relays. You can easily switch between these relay types using the selector switch on the device. Simply adjust the switch to the appropriate setting (4PIN or 5PIN) based on the relay you are testing, ensuring compatibility with a wide range of automotive relay systems.

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What's Included?

We believe in power and simplicity. Your package contains one complete, ready-to-use Automotive Relay Tester.

It's engineered as a powerful, all-in-one unit with the test leads and high-grip clips permanently integrated, so you never have to worry about missing parts. No batteries are ever needed—it draws power directly from your vehicle.

Just unbox it, connect it, and start diagnosing.

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Our Guarantee

If you're not 100% satisfied within the first 30 days, just send it back to us and we'll give you a full refund.

No need to worry about the return shipping - we've got you covered!

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Shipping Time

All US, UK, Canada, & Australia orders arrive within 7-15 days.

All Worldwide orders arrive within 7-20 days.

Please allow 1-3 days for your order to be processed.

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Stop Guessing and Start Fixing

Durable, simple, and built to last. This professional-grade tool allows you to instantly test both 4-pin and 5-pin relays with a single button, making it perfect for any skill level.

 
 
     
     

    Test with Unwavering Confidence

    The heavy-duty, insulated clamps bite down hard and won't let go, ensuring a perfect connection. This means you get an accurate, reliable reading the first time, every time.

    The Choice for Faster, Accurate Repairs

    Trusted by mechanics and DIYers alike, this tool dramatically increases diagnostic efficiency. It empowers you to find the problem fast and get your vehicle back on the road sooner.

    Our 30-Day Risk-Free Guarantee

    Your satisfaction is our promise. If you are not completely satisfied with your purchase, return it within 30 days for a full, no-questions-asked refund.

    Quick Answers to Popular Questions

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    1. Do I need to be a professional mechanic to use this?

    Absolutely not! We designed it with simplicity in mind. The straightforward clip-on system and simple one-button operation make it incredibly easy for anyone, from seasoned professionals to first-time DIYers, to diagnose relay issues accurately.

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    2. What is the difference between the 4-pin and 5-pin setting?

    Automotive relays come in different configurations. 4-pin relays are typically simple on/off switches for things like horns or fans, while 5-pin relays have an extra connection that allows them to switch power between two different circuits. Our tester allows you to check both common types with the press of a button.

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    3. How is the tester powered? Do I need to buy batteries?

    No extra batteries are needed. The tester is powered directly from your vehicle's 12V battery using the attached red and black insulated clips. This ensures it always has enough power to perform a reliable and accurate test.

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    4. What if the LED doesn't light up at all when I test a relay?

    If neither the red nor green light illuminates, it typically indicates one of two things: the relay is completely dead and unable to complete a circuit, or there is an issue with the connection to the car battery. First, ensure your clips have a solid, clean connection to the battery terminals.

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    5. Is this better than just using a multimeter and jumper wires?

    For most users, yes. While a multimeter works, it requires knowledge of the relay's pinout and a multi-step process with jumper wires. Our tester simplifies this into a single, foolproof action, providing an instant and easy-to-read result without the complexity or risk of error.