... :JK-1, a five-digit counter, measures the length of the article via accumulating the machinery contact between ... wheel and the object. It refers to measure the length of the article in textile machinery, printing, plastic film ... 1)The counter has five digits, when the recorded length (the length of the article) is 1 meter, the wheel ... 99999Enviromental Temperature-10°C--60°C JK-1 Length-measure counter