... main control component, has the merits of high accuracy, wide counting range, digital display, soft-contact key operating, ... textile, papermaking, petroleum, chemical engineering, metallurgy, etc, operating for meter counting display and alarm, or control of film, fabric and ... keeping data/not keeping data when power cut,counting frequency,step,range,etc are selectable12VDC/30mA12VDC/20mA72× 72×7548 ...