This gas meter is connected to a hose to measure unidirectional gas flow It is made of high quality acrylic, is transparent and can withstand a pressure of up to 0.6 MPa. It is easy to use and features 8mm barbs for convenient connection to hoses Can measure blast furnace gas, coke oven gas, coal gas, air, nitrogen, acetylene, phosgene, hydrogen, natural gas, LPG, hydrogen peroxide, flue gas, methane, butane, chlorine gas, methane, carbon dioxide, oxygen, compressed air and argon. Mainly used to detect oxygen flow and control oxygen flow and can be used in industry, Weight: 0.220462262 Pounds