Feature●Special antenna sensor allows quick hook-up to spark plug and ignition coil wires and measures spark plug wire voltage from 0 to 50000 volt●For 1 to 12 cylinders and 2, 4 cycle and DIS engines●Measures from 200 to 20000 RPM on a 4-1/2 digits LCD display●Advanced microcontroller technology yields 0.05 percent accuracy●Works on DIS, conventional, magneto and most spark ignition systemDescription The TA100’s unique and proprietary technology allows the user to perform quick and reliable diagnostics of non-starts, misfires, fouled up or damaged spark plugs and/or spark plug wires, by comparing digital read-outs of the spark plug voltage between cylinders on engines using conventional distributor/ignition coil, DIS (Distributor-less) or waste spark and magneto technologies.