Meter/revolution indicator with zero-setting

Meter indicator: 4 digits + 2 decimals. Revolution indicator: 5 digits. Digit’s height: 8 mm – shaft D.7 mm – bilateral drive. Zero-setting push button. Revolution: 0 = clockwise, S = anti-clockwise. Maximum speed: 500 meters per minute. Dimensions: 92x80x54. Ratio 2:1 for wheels 500 mm developing (2 revol. = 1 meter).