“These are very flexible instruments, pre-loaded with calibration data for a wide range of gases so they can be switched to a different gas as needed. This makes them much more versatile than comparably priced controllers that are calibrated for only one gas. They also report several condition parameters (outlet pressure, temperature, either volumetric or mass flow) that can be logged during an experiment. This feature also makes them more generally useful than other comparably priced controllers.”
Because this unit worked so well for this professional, he wholeheartedly recommends it for use in laboratories and research facilities.