3 stroke 1 cylinder/ 4 stroke 1 cylinder/6 stroke 1 cylinder/8 stroke 1 cylinder Gas engines. Product Function 1 Hour Meter (TOT) Function Help you track how many hours you put on your engine. Jayron Digital Hour Meter Tachometer Gauge,Maintenance Rpm Tachometer Digital Hour Meter, Tachometer, Maintenance Reminder Replaceable Battery Auto Shut Off Use For Ztr Lawn Mower Marine Tractor Generator Atv Snowmobile And Equipment 73229814 Hour Meter For Lawn Mower Buy Hoze Bandage Bag at Tacto Supply Co. Geat Custome Sevice 2 JOB timer (JOB) Function Used to measure the time of a specific job (e.g. oil change). Brand new high-quality products can be used for all gasoline engine. INSTALLATION----There is no battery required-connects to spark plug wire, and the direct connection to the spark plug is achieved by winding. Accurately records RPM when the engine is running;Range: 0-30000 RPM with 10 RPM resolution;RPM refresh rate: 0.5S. Total Hours reading displays from 0 to 99999 Hours, accuracy of 1 minute & 0.1H & 1H. It also pass another considerate test for each functions sections and attached accessories. Yellow resistance testing It can keep good working condition from simulative strong UV ray lightening. Displayed and remains visible by operating the button engine's JOB runtime. When the engine is off, the total running hours of the engine is displayed and remains visible. 4 Maintenance Reminder (SVC) Function Maintenance time can be set manually according to the engine's maintenance needs. The maintenance time is displayed in countdown, 2 groups of maintenance time can be set, the setting range are: SVC:5-50H,SVC2:10-250H. The reading shows 0 to 99999 hours accuracy:1MIN/O.1H/1H. NInE-ROnG has focused on product development and manufacturing in the fields of hour meter, battery indicator, multi-function meter，service for the garden machinery industry, outdoor power vehicle equipment, transportation vehicles. When the countdown time is 0, SVC1/SVC2 will flash to remind you. Drop test Has good shock resistance and protection. NInE-ROnG HM032R Multifunctional Self-Powered Motor Digital Maintenance Reminder Hourly Counter Tachometer, Service Timer, Resettable Work Timer, 8 Programmable Shooting... TOT hours cannot be reset; Maximum hours: 99999H. There is also a resettable job timer.
