Stroke counter with 6 digits for machines

Stroke counter with 6 digits for machines, it adds in 1 direction, each stroke it's a number, max strokes number about 500 per minute, lever travel min 38°- max 60°, the lever returns automatically to the staring point, you can move the lever from any shaft position, you can zero at once by an extractible lever. Number of digits 6, digit height 4.5 mm, shaft diameter mm 4, base dimensions 60x70 mm.