Tracks service time and rpm for timely oil changes, valve adjustments, and spark plug replacements. Features resettable maximum rpm, adjustable input for dual or single spark ignition systems, and real-time tach reading up to 20k rpm. Includes a log book. Records total hours up to 9999.99 (not resettable). Usable with any gasoline engine, it connects to the spark plug wire and is encased in 100% epoxy. Attaches with peel-and-stick or enclosed hardware.

• Tracks service time and rpm of your machine; perfect for timely oil changes, valve adjustments, spark plug replacements, etc.
• Resettable maximum rpm
• Usable with any gasoline engine
• Adjustable input for dual or single spark ignition systems
• Includes log book for writing down oil changes, valve service, and more
• Real time reading of tach up to 20k rpm
• Record total hours accumulated up to 9,999.99 hours; not resettable/erasable
• Peel and stick or attach with enclosed hardware
• Connects to spark plug wire; no batteries are required
• Safely and completely encased in 100% epoxy