BBTO Inductive Hour Meter 2-Pack for Small Gas Engines — Black, Waterproof, No-Battery RPM/Hour Display

BBTO 2-piece inductive hour meter accurately records engine run time and RPM for small gas engines without batteries, delivering a waterproof, vibration-resistant solution for lawn mowers, generators, ATVs and boats.

Keep better maintenance schedules and know exactly when to service or replace parts by tracking real engine hours. These two compact inductive meters attach to the ignition lead, powering themselves from the engine signal and showing both cumulative hours (to 9999.9) and RPM on a clear LCD. Built with ABS housing and epoxy encapsulation, they withstand outdoor use, marine spray and the vibrations typical of powersports and yard equipment.

How do I install the BBTO inductive hour meter on my engine?

Installation is straightforward and requires no internal wiring or battery. Wrap the supplied signal wire around the spark plug wire and secure the module to a nearby frame point with the included screws or a zip tie. The inductive pickup senses the ignition pulses, so there’s no direct electrical connection to the ignition system.

• Wrap the provided wire around the spark plug lead
• Mount the meter with included screws or zip ties
• No battery needed — powered by ignition pulses
• Two units included for multiple machines or a spare

Will this hour meter survive outdoor, marine, and high-vibration conditions?

Yes — the meter’s ABS casing and epoxy encapsulation create a sealed, shock-resistant package designed for rugged environments. It’s rated for temperatures up to 85°C (185°F) and resists water spray and vibration common to lawn mowers, dirt bikes, snowmobiles and outboard motors. The bright LCD remains readable while the unit flashes during engine operation for quick checks.

• ABS housing with epoxy fill for moisture protection
• Shock-resistant design suitable for vibration-heavy equipment
• Operates in temperatures up to 85°C (185°F)
• LCD displays hours up to 9999.9 and RPM to 99,999

What maintenance and accuracy can I expect from the BBTO hour meter?

The inductive sensing method yields reliable hour accumulation tied directly to ignition events, minimizing false counts from electrical noise. The display holds totals up to 9999.9 hours and the unit’s standby life exceeds 20,000 hours, so it can remain installed for years without service. Because it measures engine pulses, it provides an accurate record of run time useful for scheduled oil changes, belt replacements and service intervals.

• Accurate hour tracking synced to ignition pulses
• Display capacity: 9999.9 hours and 99,999 RPM
• Standby life over 20,000 hours for long-term use
• Two meters included for fleet use or backup

Which machines is this hour meter compatible with?

The BBTO inductive meter is built for a wide variety of small gasoline engines found in outdoor power equipment and recreational vehicles. It works well on single- and multi-cylinder machines that use a traditional spark ignition system, making it a versatile choice for hobbyists, pros and property owners alike.

• Lawn mowers, garden tractors, and zero-turn machines
• Generators, portable power units and small engines
• Dirt bikes, motocross, ATVs, karts and snowmobiles
• Boats, outboard motors and other marine applications

Who is this for: The BBTO 2-piece inductive hour meter is ideal for anyone who runs, maintains or services small gas engines — from homeowners tracking mower hours to mechanics managing several machines. It’s especially useful when you need a durable, low-maintenance hour and RPM recorder that mounts externally, survives harsh conditions, and comes as a two-unit set so you can outfit more than one engine or keep a ready spare.