YOOREAL YR-HM068 is a digital multifunction Hour Meter Tachometer which can track the engine working hours ;Monitoring real-time engine rpm values and recording maximum engine rpm is useful for keeping engines healthier. MAINTENANCE HOURMETER]: Engine total hours (TOT)/Partial timer(JOB)range: 0-99999 H,JOB can be reset;Adjustable maintenance interval time (SVC... Display highest RPM since engine started. TMR1---Single timer range:0-99999 hours. 【MAINTENANCE REMINDER】: Do the necessary maintenance task for oil changes and other maintenance,help you to know the time of due; maintenance timers range: 0-2000H/OFF. High Pressure water Gun Impact Test Made of high quality industrial grade ABS, waterproof and safe to use. ROUGH BRASS SLIP JOINT NUT | SJ12XRB - Plumbing Products Company Yooreal has established a complete laboratory for testing and improving the product's quality Buttons Testing The buttons can works well after 10,000 repeated taps with a 300g weight. Tachometer---RPM & MAX RPM Record real-time RPM value when engine is on, measurement range 0-25000RPM with 10 RPM resolution. Double-sided Table Installation & Screw Installation Suitable for gas engine 2 stroke up to 6 cylinders, 4 stroke up to 16 cylinders. The engine firing patterns to be chosen for RPM accuracy adjustment. Yooreal Digital Maintenance Hour Meter and Suitable for gas engine 2 stroke up to 6 cylinders, 4 stroke up to 16 cylinders. High & Low temperature It can works well in temperature environments temperature: -40 °C - +70 °C. (The initial hour meter can be set before the machine runs or within 1 hour of operation. SVC & TMR1 SVC---Maintenance time range: 0-2000 hours. Product Features: Hour meter TOT---Accumulate engine total working hours when it shutdown, timing read up to 99999 hours with 0.1/1 hour accuracy. 【EASY INSTALLATION】: One wire pick-up for the gas engine signal detect,wire length 3.6 ft(1.1m), it will workable whatever shorten or extend;Easy to mount it by screw-on or stick-on at any proper place. TMR1:It measures the time of a specific job, such as an oil change. Display with PC transparent board can keep it away from the damp or moist. Others Record The Number Of Engine Starts. LCD Shut Down. Replace Battery Reminder. Waterproof IP67.Replaceable Batteries The design of the four screws on the back greatly improves the waterproof performance and battery life of the product. Rpm Gauge Yooreal Digital Hour Meter Tachometer, Waterproof Design For Rpm Tester