Note: The color of the product we ship is the color in the first picture, and the specification and quantity are shipped according to the quantity and specification described in the title. If you need to change the color or style, you need to contact us within 12 hours after placing the order. Our product description: Product Features: 1.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;2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Made of ABS Plastic and SS304.4.Used for measuring the gas single-phase non-pulsating flow.5.Measure range is 100-1000ml/min.6.Mainly used to detect and control oxygen or other gas flow.Specifications:Product material: Plastic and SS304Color: Transparent & black & whiteBrand name: BQLZRModel: LZM-6Measure Range: 100-1000ml/minWorking Pressure: Less than 0.6MpaWorking temperature: 0-60 DegreeAccuracy Class: 4 PercentConnection Type: 8mm pagoda connectorMedium Applicable: GasOverall Size: 93 x 22 x 68mm/3.66 x 0.87 x 2.68 inches (L x Dia x Max W)Weight: 77gNote: require vertical installation, water from bottom to top.Package include:1 x Flowmeter Note: Because the model and display effect of the monitor may be different, there may be slight differences in color, and the size is manually measured, there may be an error of 1-2cm, please understand.