12V Automotive Electronic Relay Tester for Car Diagnostics and Battery Checking – Accurate and Reliable Multifunctional Tool

Quick Test Tool: For testing automotive relays and informing you of their condition.

Convenient Use: The tester observes contact data, closing time, relay inertia at each test stage, etc.

Easy to Use: If the relay is faulty, the red LED will light up; if the relay is faulty, the green LED will light up.

Note: The car battery must be a 12V battery, and the voltage should be between 11V and 15V. The coil resistance should preferably be greater than 20 ohms.