Bolterauer have designed their own tachnometer and hour meter built into one neat little unit. The unit is fully IP68 water proof and is supplied with a battery which will last up to 5 years. The tachometer wires onto your spark plug wire and will display the engine RPM of any single or twin cylinder 2stroke or 4 stroke engine. The trip meter funciton is resettable, but the total hours recorded is not. This will allow you to record the total running hours of your engine so that you are well aware of when the services, inspections and rebuilds are required. The tachometer is available in Black, Red and Blue colours. Call for Price.