capnograph

The concentration of this gas in the breath can be measured using a capnograph.

A capnograph is an instrument used to measure the carbon dioxide (CO) concentration in an air sample.

A capnograph is useful in detecting changes in carbon dioxide concentrations in patients who are hemodynamically stable, but not critically ill.

He said that included an adequate anesthesia machine with alarms, a cardiogram machine, a pulse oximeter and a machine called a capnograph, which senses an inadequate breathing rate.

Carbon dioxide measurements at the Mauna Loa observatory in Hawaii are made with a type of infrared spectrophotometer called a capnograph by, John Tyndall, its inventor in 1864, but now known as a nondispersive infrared sensor.