Programmable Electronic Tachometer with Spike Protection accepts signal from alternator/ ignition coil/ magnetic pick up and has cross coil moving magnet air core type. The Tachometer is designed with hour meter analogue type or digital type. The Tachometer has casing size such as 80 mm, 85 mm and 100 mm. The Programmable Electronic Tachometer with Spike Protection has operating voltage of 12 V/ 24 V.