Automotive Relay Tester | 11-25V Car Battery Check | LED Indicator Diagnostic Tool
Stock #:CMP-01437
SKU:MAIN-00274
$16.99
Ships to United States · standard est. 10-20 business days
Free standard shipping on orders over $59 (under 2kg). Express available at checkout.
This tool checks 11-25V automotive relays. It helps diagnose relay function by indicating open or closed circuits. The LED light shows the relay's status, making it easy to see if a relay works correc...
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Questions about this product
- What does this relay tester actually check?
- It tells you whether a relay's circuit opens and closes the way it should. The LED lights up to show the relay's status so you get instant feedback. It's handy for tracking down starting problems and dead accessory circuits.
- Which relays will this tester work with?
- It tests standard automotive relays in the 11 to 25V DC range, including common 4-pin and 5-pin types. It draws power straight from the vehicle battery through alligator clips. Check that your relay falls in that voltage band first.
- How do I hook it up and use it?
- Clip the alligator leads to the battery, then connect the relay and watch the LED. The light shows open or closed status right away, so no manual reading is needed. Reverse polarity protection guards against clipping the leads backward.
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