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Miniature counter, can be worn on the finger.

Press the counter: Press the button to move the ratchet, perform decimal addition counting, and includes a zero-backward mechanism. The maximum value is 999. With a ratio of 1:1, the counting speed is 300 counts per minute. It is widely used at stations, ports, point systems, inventory management, as well as for counting vehicles entering and exiting public places and tracking personnel.