Small Engine Tach-Hourmeter Part Number 56969P

For any gasoline motor up to 2 cylinder. Displays RPM up to 9000. Allows hour monitoring for even the smallest outboard motors. Great for 2 or 4 stroke. Displays RPM when running total hours when off.
Features:
No power or ground required
Water and shock proof
Automatically turns on and off with the engine
Displays up to 9999 hours
10 year internal battery lifetime