A peak flow meter is used to measure your peak expiratory flow rate (PEFR). PEFR describes how quickly your lungs expel air during a forceful exhalation after you fully inhale. Regularly ...

That's where your smart meter comes in. Electric meters measure the amount of electricity you consume. Over the last decade or so, most of them have been switched over to newer, smarter versions.

but a handheld meter is ideal for the most accurate results. While there are only two types of light to measure (incident and reflective), there are three types of meters a photographer can use ...

A magnetic flow meter relies on Faraday's Law of Induction to measure the flow of a fluid. Magnets outside the pipe create a magnetic field. Electrodes are located perpendicular to the magnets.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Moisture meters may not be familiar to the average homeowner, but they provide ...

The 6-meter walk test is a quick assessment that measures your functional fitness. A longevity doctor said she uses it on all her patients. Here's how to try it at home. It only takes about five ...

Water meters measure the amount of water delivered to a customer’s tap. The most recent meters in our system were installed in 2005. Over the last several years, 27 percent of the existing meters had ...