Electromechanical Hour Meter Display Type Electromechanical Time Range 0 to 99999.99 Bezel Face Size 1.89 in x 1.89 in Bezel Face Shape Square Bezel Face Type Flush Mount Elapsed Time To 99 999.99 Operating Voltage 120VAC Hz 60 Hz Number of Digits 7 Display Units Hours Bezel To Back Length 1.25 in Depth 1.49 in Width 1.49 in Ambient Temp Range -12 Degrees to 176 Degrees F Temp Range -12 Degrees to 176 Degrees F Mounting Method Retainer Bracket