how do carbon monoxide detectors detect carbon monoxide?

Question

how do carbon monoxide detectors detect carbon monoxide?

In: 8

Answer 1

Different sensors use different ways to detect CO.

Biomimetic sensor: a gel changes color when it absorbs carbon monoxide, and this color change triggers the alarm.

Metal oxide semiconductor: when the silica chip’s circuitry detects carbon monoxide, it lowers the electrical resistance, and this change triggers the alarm.

Electrochemical sensor: electrodes in a chemical solution sense changes in electrical currents when they come into contact with carbon monoxide, and this change triggers the alarm.