Press the hand for a 4-digit count

Yiwu City Sanda electronic Instrument Co., LTD., www.sxH5136.com, 1351695917183612003, hold the 4-digit counter, press the button to add up the number of ten and set the rotation back to zero device. The maximum number of the 4-digit counter is 9999, the pressing ratio is 1:1, the counting speed (300 times/min), widely used in stations, docks, counting, tally, etc.