The Quartz + series of hour meters provide performance and reliability. Features include a highly reliable drive mechanism and odometer gear train combined with the accuracy of quartz crystal timing. Accurate to +/- 0.02% from -40° to 185°F. Total digital quartz readout is 9999.9 hours. Easy-to-read white numerals on black face dials. Sealed against dirt and moisture. Meets requirements of spec.
Can you have the numbers preset for the current hours?
Per the manufacturer, this Hobbs Meter (part number 15000) cannot be preset. Does this Hobbs meter work off of the oil pressure switch or does it start operating as soon as the battery master is turned on?
Per the manual in the box you can wire to the ignition switch or a pressure switch to activate.