Specifications Material: Acrylic+plastic+metal Connection: 8mm hose barb Accuracy: 5% Range: 2.5~25LPM Pressure: ≤0.6MPa (recommended 101.3KPa) Temperature: 0~60°C (recommended 20℃) Package Includes: 1 x Gas Flowmeter Features High Quality Acrylic: Made of high quality acrylic, it is transparent and can hold up to 0.6MPa pressureMeasure Gas: Can measure furnace gas, coal gas, air, nitrogen, acetylene, phosgene, hydrogen, liquefied gas, , flue gas, methane, butane, gas, methane, carbon dioxide, oxygen, compressed air, argon8mm Hose Barb: It is simple to use, and has 8mm barbs for convenient connection to hosesUnidirectional Gas Flow: This gas meter is connected to hose to measure unidirectional gas flowDetecting and Controling: Mainly used for detecting the oxygen flow, control oxygen flow and can be used in industry Features High Quality Acrylic: Made of high quality acrylic, it is transparent and can hold up to 0.6MPa pressureMeasure Gas: Can measure furnace gas, coal gas, air, nitrogen, acetylene, phosgene, hydrogen, liquefied gas, , flue gas, methane, butane, gas, methane, carbon dioxide, oxygen, compressed air, argon8mm Hose Barb: It is simple to use, and has 8mm barbs for convenient connection to hosesUnidirectional Gas Flow: This gas meter is connected to hose to measure unidirectional gas flowDetecting and Controling: Mainly used for detecting the oxygen flow, control oxygen flow and can be used in industry