Keeps track of important maintenance times including oil changes, valve adjustments, spark plugs, etc.. Includes log book to record oil changes, valve service and more. Usable with any gas engine. Records and displays up to 9,999.9 hours; total hours is not resettable/erased. Just peel and stick or attach with enclosed hardware. Connects to spark plug wire; no batteries are needed. Hours automatically roll over. Safely and completely encased in 100% epoxy.
