Small Engine Tach-Hourmeter

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 requiredWater and shock proofAutomatically turns on and off with the engineDisplays up to 9999 hours10 year internal battery lifetime