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 ...

Let us help you with your inquiries, brochures and pricing requirements Request A Quote Download PDF Copy Download Brochure The QuadraTherm ® 640i from Sierra is the ...

Global initiatives to reduce greenhouse gas emissions have increased the adoption of precise air flow measurement systems ...

Rotameter flow meters are devices that can measure the flowrate of liquids and gases. Generally, the rotameter is a tube made of plastic, glass or metal combined with a float, which responds linearly ...

Most residential HVAC contractors and technicians want to do a great job for their customers. Nothing feels better than figuring out the cause of a homeowner’s issue and then implementing the right ...

Stoichiometric air-fuel ratio control during transient operation requires an accurate estimate or measurement of the instantaneous air flow rate in an engine. Two methods are commonly used for ...

An air velocity sensor has been developed to measure the air velocity distribution at a radiator front. And, an air velocity distribution meter system for a radiator has also been developed, which can ...

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A peak expiratory flow rate (PEFR) measures how effectively you exhale. Also called a peak flow meter, this handheld device helps you document the amount of air and the speed at which you can ...