Mechanical Rotary Counter Input Type Rotary Number of Digits 6 Mounting Base Max Counts per Second 50 Height 2 in Depth 2.6 in Width 6.59 in Display Black Digits White Background White Digits Black Background Diameter Not Applicable Reset Type Lever Special Features The Reset can be Mounted on the Left or Right Hand Side and the Unit has a Front Facing Easy-to-View Readout and Operates at upto 3000 Counts Per Minute with 1 1 Gear Ratio