HM035A Digital Tachometer Tach Hour Meter Thermometer Temp Meter compatible for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike Theproductmatches one TS002-PT100temperaturesensor,has an electronic Russian instruction manual HOURS---- Monitor the total run timeTOT and single working hoursJOB of gas engine, with ability to program previous hoursINT compatible for an replacement;Accomplish maintenance at recommend intervals to determine the due timeSVC;TOT & JOB hours range:0-999,99 hours;SVC timer range:5-1000 hours. RPM---- Display the real-time RPM readout by vairous engine firing patterns setting to adjust engine idle speed; Alert channel compatible for revolution exceed reminder;Viewable highest revolution since the engine started; RPM measurement range: 0-25000RPM, Alert range: 100-25000RPM. TEMP---- Keep eyes on engine current and maximum temperature at all the times by probe senorThe induction probe cannot be bent to avoid breakage; Remind the temperature exceed compatible for engine maintenance; Easy to switch between Celsius and Fahrenheit;Temp measurement & alert range: -20C~+300C-4F~+572F BACKLIGHTS---- Default green backlight will help to use it at night or dim place, you can set the backlight mode by always-on, OFF and automatical modeOFF default, button to wake up as request;Red backlight will remind the engine RPM or TEMP exceed. OTHERS---- Easy to mount it on proper position by stick-on, screw-on and extra bracketnot include, one-wire wrapping of spark plug compatible for signal detect 68.8inches, workable if shorten or extend to work right away;Favorable water and shock resistence; Battery capacity will be kept in good condition with insulation sheet during transport, it is repalceable;LCD shutdown also can extend the lifetime in vacant time;Reliable technical support and