If your line of work involves fluid handling or environmental monitoring, you are probably familiar with flow meters. These ...

The high-performance, low-maintenance, long-life, natural gas submetering thermal flow meters from Fluid Components ...

Pinwheels are pretty optimized from a design standpoint, and are so cheap and easy to build that putting a pinwheel to work as an HVAC duct flow meter seems like a great idea. Great in theory ...