Measuring air flow in an HVAC duct can be a tricky business ... like with this ultrasonic flow meter, could be a big deal for DIY projects and the trades in general. The principle behind the ...

A compact, low cost solution, the ST75 Flow Meter Series offers the advantages of direct mass flow measurement of air and gases ... operates a world-class flow calibration laboratory with ...

To strengthen the data accuracy of smart air quality monitors, Oizom established an advanced calibration facility in Ahmedabad, India. This facility houses 2-stage calibration of air quality monitors.