Carbon monoxide detectors are devices designed to detect the presence of carbon monoxide (CO) gas in the air. CO is a colorless, odorless gas produced by burning fossil fuels, and it can be harmful or even fatal in high concentrations. These detectors work by sensing the levels of CO and sounding an alarm when they reach dangerous thresholds, helping to protect individuals from potential poisoning. Most carbon monoxide detectors are battery-operated or can be plugged into electrical outlets. They should be installed in key areas of a home, such as near sleeping areas and on every level of the house. Regular testing and maintenance are essential to ensure they function properly and provide reliable safety alerts.