Process Control Devices is a Thermal Mass Flow Meter Manufacturer that meets industrial gas measurement needs. Their thermal dispersion meters operate on heated sensors for measuring gas flow without any moving parts. The model range is applicable to air, compressed air, nitrogen, oxygen, natural gas, biogas, and others. These are offered in inline and insertion versions with LCD disp... https://www.pcd-flowmeter.com/flow-meter/thermal-mass-flow-meter-manufacturer