YOOREAL Digital Tachometer,Small Engine Hour Meter,Resettable Hours,Replaceable Battery for Lawn Mower Generator Chainsaw Outboard Motor Snowblower Jet Ski Dirt Bike

【RESETTABLE HOURMETER】: Keep track the total hours of engine use(TOT) and service intervals(SVC); TOT hours range: 0-99999H,can be reset;SVC timer range: 0-9999.9H,can be turn OFF. 【MOWER RPM GAUGE】: 3 selectable engine firing patterns to keep RPM value more accurate;RPM measurement range: 0-20000RPM,10 RPM accuracy,refresh rate:0.5s. 【POWER SAVING 】: CR2450 Battery capacity will be kept in good condition with insulation sheet before using or during transport; Replaceable battery compartment and LCD shutdown also can extend the lifetime in vacant time. 【EASY TO INSTALL】: Easy to mount it by screw-on or stick-on at any proper position;One wire hook-up design for engine signal detection, it is workable whatever wire shorten or extend( wire length:appox.68.8 inches/1.75m). 【OTHERS】: Favorable waterproof resistance by whole housing design and back O sealed ring; User data will be retained after display shutdown or battery replaced; Technical support and after-sales service(2 years).