Tach / Hour Meter / Clock with resettable Maintenance Timer. Resettable maintenance timer. Five mode display screens. Tach displays running engine's RPM. Records max RPM from current ride and auto resets at next ride. Hour meter tracks total run time. Clock features 12 or 24-hour operation. Works on fuel-injected / carbureted 2-strokes / 4-strokes from 1 to 8 cylinders. Large, easy-to-read LCD screen in a sleek, compact design. Measures up to 19,999 RPM and tracks total hours up to 99,999. Mounts on any flat surface with included heavy-duty, die-cut peel-and-stick. Easy installation (single wire lead wraps around spark plug wire). Optional Mount Bracket available for bolt-on mounting (sold separately). Note: Previous generation Tach / Hour Meter mounts ARE NOT compatible with part.