Check the listing for details. Hantek HT20COP Coil-on-Plug and Signal Probe Ignition Waveform Automobile Engine. Condition: New. Listed at 62.95 USD. HT20COP coil-on plug and signal probe can catch the ignition waveform of automobile engine easily. The ignition waveform is a window, through which we can see what happened in the engine combustion chambers. It determines whether the ignition plug needs to be replaced or clean. Does fuel injector in electronic fuel injection system wok well? Is there any problem in the leakproofness of air cylinder? Does the gap between ignition plugs get larger? Does the electrode shape of ignition plug become sharp? Is there too much oil pollution or carbon deposition on the ignition plugs? Does the insulating property of ignition plug get worse? Is there any problem in the power supply system of storage battery? Feature： COP coil-on plug and signal probe can catch the ignition waveform of automobile engine easily. Ergonomic design, can bearbitrary curved. Highlight LED which is convenient to operate at night or in dark condition. Directly measure on the ignition coil easily. Do not need to add extension cable. Ergonomic design, can be arbitrary curved. Warning To avoid injury keep the probe away from moving parts, such as the alternator drive belt and cooling fans. To present electric shock do not use if the probe’s sensor plate’s insulation shows signs of damage. Package: 1 x probe; 1 x bag; 1 x gift box