This High Voltage tester is a unique tool to check the performance of ignition coils, plug wires, and the flash-over voltage of the spark plugs. It is very easy to perform, as ignition coils, plug wires and spark plugs remain on the vehicle. Kit includes High Voltage loads to simulate operating conditions in a range from 2.5kV to 32.5 kV (2500 to 32500 Volt) in 2.5kV increments. Additionally the kit includes a module that simulates the spark plug gap using a LED. This allows you to "see" the spark plug ignite, without the risk of fire. Kit comes complete with a purpose built hard shell tool box and comprehensive instructions. A must for every professional workshop and works on both 2- and 4 stroke engines.