Working Voltage ---- Works on DC 4.5-90V Battery Powered Equipment.
Data Storage ---- With CMOS EEPROM technology, the meter will automatically save the total hours currently recorded when external power is disconnected.
Display Reading ---- Total hours range: 0-999999H, timing accuracy:0.0-99999.9 H:0.1 H;100000-999999 H:1 H;Over the maximum value of the automatic return to 0.
Resettable Hour Meter ---- After connecting the meter correctly, short PIN C and PIN - and the hours will be reset to zero.
Others ---- Hour meter without battery and starts timing when properly connected to an external DC power; LCD display; 6-digit digital display.