Revolution indicator with zero-setting removable wrench

Revolution counter with key reset. 6 digits, height 8 mm - shaft D.7 mm - bilateral drive. Key reset. Rotation direction: 0 = clockwise, S = counter-clockwise. Maximum counting speed: 600 revolutions per minute. Overall dimensions: 92x80x50. Adds in one direction of rotation and subtracts in the opposite direction. Ratio 1:1 (1 revolution = 1 meter).