A Carbon Monoxide (CO) Detector is a safety device designed to monitor the concentration of carbon monoxide gas in an environment. CO is a colorless, odorless, and tasteless gas that can be harmful or even fatal when inhaled in high concentrations. It is commonly produced by combustion processes, such as in car engines, gas heaters, stoves, and other fossil fuel-burning appliances. Detecting CO early can prevent poisoning and save lives.