A handheld diagnostic tool for checking 12V automotive relays. Connect the tester to a 12V source (11V-15V), insert the relay, and the tool energizes the coil and checks the contact function - the green LED lights for a working relay, the red LED for a faulty one.
Key Features
Checks relay coil and contact operation with a simple LED pass/fail result
Observes contact behavior, closure time, and relay response at each test stage
Pocket-size and easy to operate - handy for quick diagnosis in the garage or on the road
