ADD750 Automotive Ignition Coil Tester, Standalone Automotive Ignition Coil Tester ADD750 Automotive Ignition Coil Tester, Standalone Automotive Ignition Coil Tester ADD750 Automotive Ignition Coil Tester, Standalone Automotive Ignition Coil Tester Handheld ignition coil rapid tester, battery powered, stable and professional performance. Designed to easily and quickly determine if the ignition coil is producing the correct spark from the ignition needle. It works by receiving signals from the secondary ignition coil, providing accurate and reliable test results. Upon receiving the signal, the tester determines whether the ignition coil is producing the correct voltage and arc length. If the voltage is correct, the tester will beep and the red LED indicator will flash; if the arc length is correct, the green LED will also flash. Specifications: Product Type: Ignition Coil Tester Instructions for Use: 1. Connect the connector and sensor head correctly to the tester. 2. Align the sensor head with the ignition coil and begin operation. Determine the ignition coil's operating status based on the ignition result. Test Results: Red LED: Continuous flashing and beeping indicate the ignition coil (COP) is generating the correct voltage. No response or unstable response indicates the ignition coil (COP) is not generating the correct voltage. This could be caused by any of the following: 1. Contamination or incorrect gap 2. Damaged/corroded wires or connectors 3. Coil or PCM malfunction Green LED: Continuous flashing indicates the arc duration is correct. No response or unstable response indicates the arc duration is incorrect. This could be caused by any of the following: 1. Short circuit in the internal coil winding 2. Excessive primary/secondary connection resistance or poor connection 3. Primary/secondary connection 4. Coil malfunction Material: ABS Color: As shown in the picture Package Contents: 1 x Ignition Coil Tester (battery not included) 1 x Adapter Arm 1 x Sensor 1 x Storage Bag The above only includes the package contents and does not include other products. Note: Light during shooting and different monitors may cause the color of the item in the picture to be slightly different from the actual product. The allowable measurement error is +/- 1-3 cm.