Features:1.Product function: to measure gas single-phase non-pulsating flow2.Beautiful look,low weight,unbreakable and long life span.3.Mainly used to detecting and controlling the flow of oxygen, the gas flow also can be detected. The case can be used for industrial, oxygen bar and other occasions which need to calculate the gas flow.4.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;5.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.Material: Acrylic + plastic + metalSize: 120 x 72 x 20mm/4.72 x 2.83 x 0.79inch(L x W x H)Connection: 8MM pagoda (hose connection)Center distance: 94.5mmApplicable medium: GasAccuracy: 5%Flow range: 3-30LPMWorking pressure: 0.6MpaOperating temperature: 0-60 CColor: Multicolor(As pictures shows)Weight:100gPackage include:1 x LZQ-7 Oxygen Flow Meter Note: Please allow slight errors due to manual measurement. Please make sure you don't mind before bidding. Color may vary depending on your monitor, please understand. Note: Hello, please pay attention to your shipping address when purchasing products. If your delivery information (e.g. name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly