Hour Meter, Display Type Electromechanical, Time Range 0 to 99999.9, Bezel Face Size 2.05 in x 1.03 in, Bezel Face Shape Rectangular, Bezel Face Type Flange Mount, Elapsed Time To 99,999.9, Operating Voltage 90 to 264V AC, Hz 50/60 Hz, Number of Digits 6, Display Units Hours/Tenths, Bezel To Back Length 2.15 in, Ambient Temp. Range -40 Degrees to 185 Degrees F, Material of Construction Black Polymer, Reset Type Non Resettable, Temp. Range -40 Degrees to 185 Degrees F