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Product Details

Introducing the Ultimate Car Relay Diagnostic Tool

Discover a hassle-free way to test the general health and functionality of your automotive relays. Designed for ease of use, this Universal Automotive Relay Tester not only diagnoses potential issues but also provides quick feedback through its intuitive LED indicators. Whether you’re an experienced mechanic or a car enthusiast, ensure your vehicle’s relays are in top shape with this indispensable tool.

Key Features

  • LED Indicators: Instant feedback with GREEN LED for a successful test and RED LED for any irregularities.
  • Universal Compatibility: Works for both 4-pin and 5-pin relays, covering the most common automotive relay types.
  • Easy Connection: Simply attach the black alligator clip to the negative terminal and the red clip to the positive terminal of a 12V car battery.
  • Durable Material: Crafted from high-quality ABS, ensuring longevity and resilience.

When to Use This Product

Best utilized when you’re experiencing electrical issues in your vehicle or during regular vehicle maintenance. It’s the perfect tool for those wanting to ensure their relays are functioning correctly, thus maintaining the overall health of their car’s electrical system.

What Sets It Apart

This Relay Tester stands out due to its simplicity combined with precision. Unlike other testers, it provides a comprehensive analysis – from pin configuration to checking for consistency in relay functionality. It’s an all-in-one solution for your car’s relay diagnostic needs.

Benefits of Using Our Relay Tester

  • Ensures the effective functioning of your car’s relays, potentially saving costly repairs.
  • Quick diagnostic results through LED indicators.
  • Eliminates guesswork, offering accurate and consistent tests.
  • Compact and lightweight, making it easy to carry and store.

Product Specifications

  • Material: ABS
  • Weight: 240g
  • Dimensions: 10.5cm (L) x 6cm (W) x 2.5cm (H)
  • Power: 12V Car Battery (11V-15V)
  • Coil Resistance: Ideal for above 20 ohms

Take Action Now!

Don’t let faulty relays hinder your vehicle’s performance. Invest in a tool that brings peace of mind and ensures optimal relay functionality. Add the 12V Universal Automotive Relay Tester with LED Diagnostic Indicators to your toolkit today!

Shipping & Payment


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have been shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of NoahBaba (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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12V Universal Automotive Relay Tester with LED Diagnostic Indicators

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Arrives by Monday, Jun 3
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