The ABUS Carbon Monoxide Detector Warning Alarm Sensor is a reliable and essential home security device powered by 3 batteries. This digital sensor features an electrochemical carbon monoxide sensor and voice alerts for added safety. With a 90 dB operating sound rating, this white-coloured unit provides peace of mind by detecting potential carbon monoxide leaks in your home. Easy to install and use, this smoke and carbon monoxide detector is a must-have for any household looking to protect their loved ones from potential hazards.