SN55B gear flow sensor is widely used for low flow accurate measurement in various industries. Applicable media: additive fuels, flotation cells for water treatment, corrosion inhibitors, catalysts, emulsifiers, oils, fats, spices, adhesives, solvents, inks, pesticides and other high viscosity media. The application industries include automobile, aviation, mining, electric power, chemical industry, pharmacy, food, coating, petroleum, environmental protection, printing and other industries, which are especially suitable for flow measurement of medium with high viscosity such as heavy oil, polyvinyl alcohol, resin, etc. (fluids with viscosity up to 10000Pa. s can be measured).