Electronic counter 1001-1020 manual counting 300 times / min mechanical counter 2002-6003 manual counting 200 times / minute electronic counter counter: 13516959171 press the button to push ratchet, decimal addition count back to zero and is provided with a rotating device, the maximum number of 9999, the proportion of 1:1, the counting speed (300 BPM), widely used in railway stations, docks, points, tally, the number of vehicles and public places, statistics and so on