Universal 12V Electronic Automotive Relay Tester for Car Van Auto Battery Checker<br>Material: Plastic & Metal<br>Voltage: 12V<br>Features:<br>Automotive relays test tool.<br>Through the continuous automobile battery (11V-15V) to the relay coil, the detector can properly check the relay contact function.<br>The tester observes contact data, closure time, relay inertia at each test stage, etc.<br>Test to properly control the opening and closing of the relay.<br>If the relay is abnormal the red LED will light, it's normal the green LED will light.<br>Package included: 1 x Relay Tester<br>Note:<br>1. Due to the difference between different monitors or color reflecton in the monitor lighting, background etc, the picture may not reflect the actual color of the item.<br>2. Please allow 1-5mm error due to manual measurement.<br>3. The car battery must be a 12V battery,<br>4.The voltage of the battery must be between 11V-15V.<br>5. The applicable coil resistance must be above 20 ohms.