Sierra Tach-Hour Small Engine 56969PFor 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.No power or ground requiredWater and shock proofAutomatically turns on and off with the engineDisplays up to 9999 hours10 year internal battery lifetime
WARRANTY INFORMATION
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