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A flow meter works by measuring the amount of a liquid, gas, or steam flowing through or around the flow meter sensors. Flow meter sensors work in different ways, but with the same end goal: Provide ...

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 ...

A water flow meter is an instrument capable of measuring the amount of water passing through a pipe. Several water flow meter technologies are available for selection depending on the water ...