🚘12V/24V Automotive Relay Tester

🚘 12V/24V Automotive Relay Tester
🔌 Fits 4PIN & 5PIN Relays
💡 LED Light Shows Results Clearly
⚡ Plug & Play, Easy Operation
🛡️ Insulated Design for Safety
📦 Compact & Portable
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  • Trusted by thousands
  • Rated and reviewed
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Product Details

The 12V/24V Automotive Relay Tester combines practical diagnostic function with user-friendly design to help you quickly check relay status for cars and trucks.

  • Adjustable LED indicator ensures clear pass/fail results at a glance
  • Lightweight, compact design fits easily in your tool bag
  • Durable, insulated clips and wires provide stable connection during testing
  • Easy to use with plug-and-play operation, no extra tools required
  • Universal fit for most 4-pin and 5-pin automotive relays
  • Dual voltage compatibility works with both 12V cars and 24V trucks

Instructions

  1. Connect the red clip to the positive (+) terminal and the black clip to the negative (-) terminal of the car battery.
  2. Insert the 4-pin or 5-pin relay into the corresponding socket on the tester.
  3. Press the test button to start the relay diagnostic.
  4. Check the LED indicator to confirm if the relay is working properly.
  5. Disconnect the tester and store it in a dry place after use.

💡 Pro Tip: Make sure the battery voltage is stable before testing for accurate results!

Shipping & Returns

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  • Processing time: 1–2 business days

• Estimated delivery: 8–13 business days depending on location

• Tracking information will be provided once your order ships

🔄 30-Day Easy Returns

If you're not satisfied with your purchase, contact us within 30 days of delivery and we’ll help arrange a replacement or refund.

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🚘 Made For Your Garage & Every Repair

More than just a tester. This automotive relay tester is built for speed, accuracy, and stress-free diagnostics.

🔌 Universal Relay Compatibility

Features 5 sockets for 4-pin & 5-pin relays, covering most common automotive relays to eliminate guesswork in vehicle electrical diagnostics.

💡 Instant & Clear Results

Features a simple red/green LED indicator. Green light confirms normal function, red light flags faults for quick, unambiguous go/no-go diagnosis.

🔧 Simple Plug-and-Play Operation

Just connect to the battery, insert the relay, and press the test button. No complex setup required — easy for anyone to use.

📦 Durable & Portable Design

Made of sturdy ABS material with insulated cord. Compact and tough, easy to carry and store for daily use.

Chosen By 10,000+ Automotive Users

  • ⭐⭐⭐⭐⭐

    This relay tester is a total game-changer! The LED lights give instant, clear results, eliminating guesswork. It works with both 12V cars and 24V trucks, making it the most versatile tool in my kit.

    Mike D.

  • ⭐⭐⭐⭐⭐

    Perfect automotive tool! The 5-socket design fits every 4-pin and 5-pin relay I’ve tested. It’s lightweight, connects in seconds, and simplifies all my electrical diagnostic work.

    Chris B.

  • ⭐⭐⭐⭐⭐

    Super practical and reliable! The build quality feels solid, and the plug-and-play operation couldn’t be simpler. It saved me hours of troubleshooting with its clear pass/fail results.

    Tom S.

Is the tester compatible with all common relays?

Absolutely! It works with most 4-pin and 5-pin automotive relays, covering the vast majority of passenger cars and commercial vehicles.

Is the operation safe?

Definitely. The tester features fully insulated clips and wires to prevent electric shock, and the simple LED feedback avoids any risk of misoperation.

Is it easy to store and carry?

Very much so. Its compact, lightweight design fits easily in any toolbox or glove compartment, making it ideal for on-the-go repairs.

Is setup complicated?

Not at all. Just connect the clips to the battery, plug in the relay, and press the test button. No complex calibration or extra tools required.