Relay Tester
Relay Tester
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- FREE International Delivery
When Will My Order Arrive?
When Will My Order Arrive?
Estimated delivery times:
🇺🇸 United States: 4–7 business days
🇬🇧 United Kingdom: 7–12 business days
🇦🇺 Australia: 5–8 business days
🇨🇦 Canada: 6–10 business days
🌍 Rest of World: 10–20 business days
Refund, Return, Exchange, And Cancellation Info
Refund, Return, Exchange, And Cancellation Info
💫 30-Day Returns & Refunds
Enjoy a hassle-free return process at MerryWonders.com.
🛑 Cancellation Policy
Changed your mind? You can cancel within 24 hours of placing your order for a full refund.
📧 How to Cancel: Email us at merrywonders@proton.me for quick assistance.
🔁 Returns & Exchanges
Start your return or exchange anytime through our Self-Serve Return Section on our website.
⚙️ Processing Time
All return and cancellation requests are processed within 1–3 business days — always fee-free.
💳 Refund Timing
Refunds typically appear on your original payment method within 3–7 business days after processing.
💬 Need Help?
We’re here for you!
Contact us anytime at merrywonders@proton.me for friendly, fast support.
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.
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, 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 sockets, press the "Test" button, and the tester will automatically detect the pin position of the unknown relay.
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.
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.
With our patented design this relay tester will give you the results you need quickly and easily.
Size: 13*7*3cm,
Weight: 260G
Product List:
1*Relay Tester
