There are no two identical leaves in the world, but there can be two flow meters with consistent readings. If you find that the readings of two flow meters are different, please do not directly determine that there is a problem with the flow meter.

We claim that the ALICAT mass flow controller has the fastest control response speed in the world. However, how can we prove ourselves in the face of many peers who also call our devices' fast '?

A user reported to us that the flow rate measured by their mass flowmeter at half atmospheric pressure was inaccurate. What's going on here?