Measuring air flow in an HVAC duct can be a tricky business. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris. Being able to ...

Peak flow meters are portable devices that are easy to use at home, in school, or on the go. They’re used to measure a person’s ability to exhale air forcefully out of their lungs. If you have a ...

How does a mass air flow sensor work? What is a MAF sensor? This video explains how a hot wire type mass air flow sensor helps the engine determine how much fuel to inject, by giving a proper reading ...