Choose between a standard hour meter or a resettable hour meter that can also display engine RPM and service alerts! Standard Moose hour meter: Hour meter keeps track of important maintenance times for oil changes, valve adjustments, spark plugs and more Usable with any gas engine Records and displays up to 9,999.9 hours; hours automatically roll over Includes log book to note oil changes, service intervals, etc. Peel and stick or attach with supplied hardware Connects to spark plug wire, so no batteries are needed Safely and completely encased in 100% epoxy Made in the U.S.A. Resettable Moose hour meter: Track the service of your vehicle's oil changes, valve adjustments, spark plugs, etc. Peel and stick or attach with enclosed hardware No battery required, connects to the spark plug wire Works on any gas engine Made in the U.S.A. Includes log book to note oil changes, service intervals, etc. Shows RPM and service alerts Resettable hours and service Safely and completely encased in 100% epoxy