This gas meter is connected with a pipe to measure one-way gas flow. This gas flow meter is made of high quality acrylic, it is transparent and can withstand the pressure of 0.6MPa . It is simple to use and features 8mm barbs for convenient connection to hoses. Can measure blast furnace gas, coke oven gas, coal, air, nitrogen, acetylene, phosgene, hydrogen, natural gas, liquefied petroleum gas, hydrogen peroxide, combustion gases, methane, butane, chlorine gas, methane, carbon dioxide, oxygen, compressed air, argon Mainly used to detect oxygen flow, control oxygen flow, and can be used in industry Material: Acrylic+Plastic+Metal Connection: 8mm Barb Fitting Accuracy: 5% Range: 0~3LPM Pressure: 0.6MPa Temperature: 0~60°C The com package takes:1 x gas flow meter