... are the real manufacture of ultrasonic flow meter,water meter,calorimeter,ultrasonic thickness gauge,flaw detector. Model style ultrasonic flow meterTechnology features:1: ... positive,negative,net totaliser or flow rate and thermal energy of the last 512 days,128 months,10years ... : SEYV75-2 style special shielded twisted pair cable8: ultrasonic thickness gauge(measure the thickness of pipe,reduce error ...