It is used to measure liquid flow in the channels. It can measure flow of acid, alkali, salt and other corrosive liquids or liquid with solid such as Pulp, mud and debris with a large number of sewage viscosity media. The flowmeters are not effect by the media pressure, temperature, density (including the solid-liquid ratio) and viscosity change. It is wide range, good anti-interference and reliability. The sensor has explosion-proof type. the explosion-proof grade is mdⅡBT4.