HAOSHI Automotive 12V Relay Tester Cordless Design Green

Product Features:

Quickly test the condition of a 12V relay out of the vehicle.

Accurately check the relay for circuit breaks and switch contacts.

Test results provide good/bad indication: green LED=pass, red LED=fail

Fully self contained, no need to clamp cables onto the vehicle battery.



Product Highlights:

Reasonable design

The portable relay tester can be used in places without external power supply to test relays, which is convenient and portable. Traditional relay testers must be connected to the car battery for testing, and they cannot stay away from the car battery. (Note: Please do not test the relay in an environment with high flammable gas concentration. If the relay causes poor contact, sparks appearing during the test may cause accidents.)

Practical and convenient

The product can be used with only 4 AA batteries, which are easy to replace.(Note: The product is shipped without batteries, please prepare batteries in advance.)

Thoughtful choice

The product adds an OFF button, which can be turned off after use, and it can extend battery life.

How to use it?

1. Install the enclosed 4-AA batteries into the back of the tester, replace the cover.
2. Determine if your relay has a 4-pin or 5-pin blade configuration.
3. Match the pattern to one of three blade receptacles on the relay and plug it in.
4. Slide the switch to either the 4-pin or 5-pin setting on the tester.
5. Press the test button.

HAOSHI Automotive 12V Relay Tester Instructions:


Package Includes:

1pc x HAOSHI Automotive 12V Relay Tester Cordless Design Green