CarBole Digital Hour Meter Tachometer for Small Engines — Black, Battery-Powered 2-in-1 Hour & RPM Gauge with 20,000 RPM and Servi

CarBole's Digital Hour Meter Tachometer is a compact 2-in-1 gauge that records engine running hours and measures RPM for small gas engines without needing external power.

This compact tachometer-hour meter combines hour logging and RPM measurement in a battery-powered package designed for lawn mowers, generators, dirt bikes, snowmobiles, boats and other small-engine equipment. It fits into tight spaces and provides clear LCD readouts, programmable maintenance reminders, and robust accuracy for routine service scheduling. The unit stores up to 99,999 hours and reads up to 20,000 RPM, making it useful across many makes and models from hobby engines to utility equipment.

How does the CarBole meter record engine hours and why does that matter?

The meter automatically accumulates running time whenever the engine is active, showing total hours with 0.1-minute accuracy so service intervals are tracked precisely. Accurate hour logging helps you plan oil changes, filter replacements and other routine maintenance to protect engine life and performance.

• Automatic hour counting up to 99,999 hours
• 0.1-minute precision for detailed service logs
• Battery-backed memory retains hours without external power
• Two programmable service reminders (SVC, SVC2) to schedule maintenance

Can this tachometer read RPM reliably on different small engines?

Yes — it measures engine speed up to 20,000 RPM with an accuracy of about 10 RPM, suitable for most small gasoline engines and motorcycles. The tachometer accepts common pickup methods and displays RPM clearly on the LCD for quick diagnostics or tuning checks.

• RPM capacity: 20,000 RPM with ±10 RPM accuracy
• Works with common ignition signal inputs on small engines
• Clear numeric display for instant RPM readings
• Useful for performance checks and idle adjustments

What are the installation and power requirements?

Installation is straightforward: the unit is small (approx. 1.6" L x 3" W) and lightweight, designed for easy mounting on dashboards or frames. It runs on a single CR2450 lithium battery, so no wiring to the vehicle electrical system is required and memory is preserved when the engine is off.

• Compact dimensions fit tight mounting locations
• Single CR2450 battery powers the unit; no external wiring
• Battery-backed memory keeps hours and settings intact
• Simple wiring for tach input and mounting hardware included

What maintenance and alert features help prevent missed service?

The meter includes two independent service interval timers (SVC and SVC2) that you set to remind you when maintenance is due. When an interval is reached the LCD flashes a reminder, eliminating guesswork about when to change oil, filters, or inspect wear items.

• Two programmable maintenance reminders for staggered services
• Flashing LCD alert when a preset interval is reached
• Helps track multiple maintenance tasks separately
• Reduces risk of overdue servicing and unknown wear

Who is this for: The CarBole Digital Hour Meter Tachometer suits homeowners, landscapers, mechanics and recreational riders who need an easy-to-mount, battery-powered way to track engine hours and RPM without modifying wiring harnesses. It’s especially helpful for owners of lawn mowers, generators, small boats, snowmobiles, dirt bikes, go-karts and other gas-powered equipment who want accurate service scheduling, basic RPM monitoring, and a compact instrument that fits tight spaces.