Hour Counter Display Type Electromechanical Time Range 0 to 9999.9 Bezel Face Shape Square Elapsed Time To 9 999.9 Operating Voltage 120V AC Hz 60 Hz Number of Digits 5 Display Units Hours Depth 2.36 in Length 1.18 in Width 1.18 in Ambient Temp Range -40 Degrees to 158 Degrees F NEMA Rating 13 4X Material of Construction Plastic Reset Type Non Resettable Temp Range -13 Degrees to 158 Degrees F Fits 0.89 in dia Panel Opening Mounting Method Screw Terminal Type Screw Clamp