Car COP Ignition System Detector ADD750 Independent Automotive Ignition Coil Test Detector Handheld Coil On Plug fast ignition tester, battery powered, with stable and professional performance._x000D_ Designed to easily and quickly determine whether the COP produces the proper spark for the plug._x000D_ It works by receiving the signal from the secondary ignition coil, and the test result is accurate and reliable._x000D_ Once the signal is received, the tester will determine whether the COP produces the correct amount of voltage and arc duration._x000D_ 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._x000D_ _x000D_ Specification:_x000D_ Item Type: Ignition Coil Tester_x000D_ How to Use?_x000D_ 1. Correctly connect the connector and sensor head to the tester._x000D_ 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._x000D_ Test Results:_x000D_ Red LED Light:_x000D_ Consistent, steady flashing and beeping indicates the COP is producing the correct amount of voltage._x000D_ No response or an inconsistent response indicates the COP is NOT producing the correct amount of voltage._x000D_ This may be caused by one of the following:_x000D_ 1. Fouled , or incorrect space_x000D_ 2. Damaged/corroded wires or connectors_x000D_ 3. Faulty coil or PCM_x000D_ Green LED light:_x000D_ Consistent and steady flashing indicates the duration of the arc is correct._x000D_ No response or an inconsistent response indicates the duration of the arc is NOT correct._x000D_ This may be caused by one of the following:_x000D_ 1. Shorted windings inside the coil_x000D_ 2. Resistance or bad connections in the_x000D_ 3. primary / secondary connections_x000D_ 4. Faulty coil_x000D_ Material: ABS_x000D_ colour: As shown_x000D_ _x000D_ Package Contents:_x000D_ 1 x Ignition Coil Tester(without battery)_x000D_ 1 x Adapter Lever_x000D_ 1 x Sensor 1 x Storage Bag_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_