Moose Racing Hour Meter with Tachometer - HR-8061M

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
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
Hour/tach meter adds the ability to check engine rpm; works with any gas engine up to two cylinders at speeds up to 8000 rpm
Firing pattern: 1 spark = 1 rpm; resolution in 10-rpm increments