Includes all of the features of the other Hardline Hour Meters with re-settable service alarms. Adjustable RPM input for dual or single spark ignition systems. Real time reading of tach up to 20,000rpms. Flash alerts include "Clean Air Filter" every five hours, "Change Oil" every 10 hours and "Valve Service" every 20 hours. All flash alerts count down the last 10 hours left before service. All flash alerts are easily reset with a touch of a button. Meter also includes timer mode to record individual riding sessions. This hour meter works on all gasoline engines including newer FI bikes. Total hours accumulated is not resettable and cannot be erased.