Runleader Digital Self-Powered Hours Tachometer,Maintenance Reminder,Backlights Runleader Digital Tach Hour Meter, Working Hours Track,Maintenance Reminder,Initial Hours Setting,Current RPM recorded, RPM exceed Alert, Green Red Cyan Backlight Display, User Data Storage,Waterproof Design. Product Features: Hours ? Accumulate engine total working hours when it shutdown, timing read up to 999,999 hours with 1 min /0.1/1 hour accuracy. ? TOT hours is non-resettable but restart from 0 when value exceed 99,999 hours. ? Count-down tracking for maintenance time, remind the arrived status by flashed icon ? TOT initial hours can be programmed for replace an old hour meter. ? Maintenance time range: 0-2000 hours ? Record the times per engine working period. RPM ? Record real-time RPM value when engine is on, measurement range 0-25000RPM with 10 RPM resolution. ? Display highest RPM since engine started. ? RPM alert channel for speed exceed, remind by red backlight and flashed warning icon. ? The engine firing patterns and RPM measurement range to be chosen for RPM accuracy adjustment. ? Suitable for gas engine 2 stroke up to 3 cylinders, 4 stroke up to 16 cylinders. Specification ? Operating button colors: Red,Blue,Black ? LCD window size:approx.1.80.9 inches ? Product size:approx.2.95x1.69x0.79 inches ? Accessories: 3M adhesive velcro,cable tie,Screw, hex nut,washer,CR2450 Battery, User manual. ? CE ROHS certification ? Waterproof rate: IP67. HOURS : Keep track the hours used and single working task of your engine, program previous hours can be set for a replacement;Perform the necessary maintenance schedule to determine the due time;TOT JOB hours read up to 999,999 hours;SVC timer range:0-2000 hours . RPM : Display the engine real-time RPM and highest RPM since engine started to adjust the idle speed, RPM value correction by engine firing patterns and measurement range selection, extra alert channel for speed exceed reminder; RPM measurement range: 0-25000RPM, Alert value range:100-25000RPM. BACKLIGHTS DISPLAY : Green backlight will help to use it at night or the dim place, you can set the backlight for always-on, OFF and automatical mode as request; Red backlight will display to reminder the RPM exceed warning; Cyan backlight will display from operation systems DSP1 to DSP2 switched. ECO MODE : 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. OTHER FEATURES : Simple mount it by stick-on or screw on at any proper position;One wire hook-up design for engine signal detection with wire shorten or extend( wire length:appox.68.8 inches); Favorable waterproof resistence by whole housing design and back O sealed ring; User data will be retained after display shutdown or battery replaced; Reliable technical support and after-sales service(2 years).