Runleader HM026A Digital Inductive Tachometer Tach Hour Meter Waterproof Small Engine Tachometer for All Gasoline Engine ATV UTV Dirtbike Chainsaw Motocycle Outboards Snowmobile Pitbike PWC Marine Small Engine Tachometer Works on Gasoline Engine,Records and Displays to 99999 hours/30000 RPM Measuring current engine RPM,recording and viewing engine MAX RPM; Accumulating total running hours TOT, recording partial running time JOB.Resolition 1 min ,Partial hours can be reset to zero. Maintenance reminder service,user can set it from 5 hours to 50 hours or 10 hours to 250 hours. Waterproof large LCD Tach Hour Meter;waterproof IP68; 2-Year warranty.