Accurate measurement: Individual totalization/total totalization/zero setting/record keeping for 10 times can be displayed. Measuring unit can be switched between L/min or m?/h. Professional gas metering, DN15 calibers to meet needs. Widely used in municipal gas, petrochemical, industrial metallurgy, etc. Liquefied natural gas, nitrogen, steam, pipeline gas, etc. Easy to install, horizontal or vertical mounting, light weight and threaded connections for easy installation. Item name: Flowmeter Measurable media: natural gas, , compressed air, oxygen, nitrogen and other gases. Type: DN15 low pressure(Bearing capacity: 3 kg) Product configuration: Filter fittings Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you Colour:Photo Color Material:Metal Package Contents: 1 x High-precision Gas Flow Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.