meter counter is a special equipment used to measure the length of cables and other media. The tracked meter counter is dragged together after the measuring medium is clamped by the upper and lower tracks. The length of the crawler is the length of the measured medium. The length of the crawler track is the length of the pitch line that the crawler wheel turns, that is, the product of the crawler wheel pitch and the number of teeth. The encoder installed on the active crawler shaft measures the number of turns the crawler has turned. After conversion, the length of the medium can be obtained and recorded. The upper crawler is lifted up and down by the hand wheel and the screw rod, and the lower crawler is lifted up and down by the air cylinder. The lifting distance is determined by the outer diameter of the medium being measured.