Hign-concerned Chemical:NoneModel Name:Ignition Coil TesterBrand Name:DOACTOrigin:Mainland ChinaCertification:NoneProfessional Coil On Plug Quick Tester Auto Car Ignition Coil System Check Diagnostic Tool Feature: 1. Handheld Coil On Plug fast ignition tester, battery powered, with stable and professional performance. 2. Designed to easily and quickly determine whether the COP produces the proper spark for the plug. 3. It works by receiving the signal from the secondary ignition coil, and the test result is accurate and reliable. 4. Once the signal is received, the tester will determine whether the COP produces the correct amount of voltage and arc duration. 5. If the voltage is correct, the tester will beep and the red LED indicator will flash; if the arc duration is correct, the green LED will also flash. Specification: Item Type: Ignition Coil Tester Material: ABS Battery: CR2032 button battery, 120mAh (built-in) How to Use: 1. Correctly connect the connector and sensor head to the tester 2. The induction head is aligned with the ignition coil to start working, and the working status of the ignition coil is judged according to the result of lighting Test Results: Red LED Light This may be caused by one of the following: 2.Damaged/corroded wires or connectors 3.Faulty coil or PCM Green LED light Consistent and steady flashing indicates the duration of the arc is correct. No response or an inconsistent response indicates the duration of the arc is NOT correct. This may be caused by one of the following: 1.Shorted windings inside the coil 2. Resistance or bad connections in the 3. primary / secondary connections 4. Faulty coil Package List: 1 x Ignition Coil Tester 1 x Adapter Lever 1 x Sensor 1 x Manual 1 x Storage Bag