2X Car COP Ignition System Detector ADD750 Automotive Coil Test

Once the signal is received, the tester determine whether the COP produces the correct amount of voltage and arc duration. It works by receiving the signal from the secondary ignition coil, and the test result is accurate and reliable. Designed to easily and quickly determine whether the COP produces the proper spark for the plug. Hand‑held Coil On Plug fast ignition tester, battery powered, with stable and professional performance. If the voltage is correct, the tester beep and the red LED indicator flash; if the arc duration is correct, the green LED also