Features:3.Widely used for measuring and controlling the flow of oxygen4.Beautiful look,low weight,unbreakable and long life span.5.Product function: to measure gas single-phase non-pulsating flow6.Mainly used to detect and control 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.Material: Acrylic + plastic + metalSize: 116 x 69 x 22mm/4.57 x 2.72 x 0.87inch(L x W x H)Connection: 8MM pagoda (hose connection)Center distance: 90mmApplicable medium: GasAccuracy: 5%Flow range: 0.5-5LPMWorking pressure: 0.6MpaOperating temperature: 0-60 CColor: Silver + Black + White(As pictures shows) name: BQLZRWeight:86gPackage include:1 x LZQ-4 Oxygen Flow Meter