The Smart Carbon Monoxide Alarm is a battery-powered device. The battery is built in. It was designed to cover the entire lifespan of the detector. For safety reasons and to guarantee maximum efficiency, all carbon monoxide detectors must be replaced after 10 years because the carbon monoxide detection sensor wears out over time.
A few weeks before the battery runs out, the product's fault LED will start to flash orange every minute and the alarm will beep twice every minute. Your detector will also send a low-battery alert to your smartphone.