Inductive Tachometer Alert RPM Engine Hour Meter Illuminated Resettable Tacho Hour Meters for Motorcycle ATV Lawn Mower HM032B -- Inductive Tachometer Alert RPM Engine Hour Meter HM032B Illuminated Resettable Tacho Hour Meters for Motorcycle ATV Lawn MowerRunleader RL-HM032B Self-Powered Engine Digital Maintenance Reminder Tachometer Includes Tachometer, Hour Meter, Service Timers, Run Timer, Programmable Max RPM Reminder and selecting the backlight mode. Removable battery, shut-off function and waterproof design. Multi-function hour counterIncludes tachometer (RPM), hour counter, service timers (SVC and SVC2), resettable Work Timer (Job); Conveniently view data, help you manage a healthy engine. Hour counter Help you keep track of how many hours you can put on your engine; When the engine is turned off, the display shows the total engine run time and remains visible; TOT hours are non-resettable with an accuracy of 0.1 hours; allows user to set initial total hours to replace old meter. Maintenance reminder Programmable service interval service time (SVC and SVC2), countdown tracking service reminder time; When the SVC time is reached, the warning icon will flash and the backlight will turn red; work timer used to measure the time of specific work, such as changing oil, replacing air filter, etc., the value can be reset; Running and SVC readings can be viewed directly via related buttons. Tachometer Accurately record the RPM value when the engine is running, help adjust the engine at idle; Various engine firing patterns can be programmed; Programmable RPM alarm, red display backlight and warning icon flashing; MAX RPM engine recording and recall; Programmable RPM measurement range selection mode for better RPM data accuracy.OtherEasy to install; Includes detailed instructions for use; Green backlit display, programmable backlight mode; Battery replacement, user shutdown; Data retained after shutdown; Waterproof: IP65; CE ROHS certificate; 2 years warranty.