Hour Meter, Display Type LCD, Time Range 0 to 99999.9, Bezel Face Size 2.20 in dia, Bezel Face Shape Round, Bezel Face Type Flush Mount, Elapsed Time To 99,999.9, Operating Voltage 120V AC, Hz 60 Hz, Number of Digits 6, Display Units Hours/Tenths, Bezel To Back Length 1.42 in, Ambient Temp. Range -22 Degrees to 149 Degrees F, Material of Construction ABS, Input Type Electrical, Reset Type No Reset, Temp. Range -22 Degrees to 149 Degrees F, Fits 2.0 in dia Opening, Mounting Method Retainer