Carbon monoxide (CO) detector powered by a 10-year tamper-proof battery. Designed to detect carbon monoxide in domestic premises. Electrochemical sensor sounds the alarm when carbon monoxide is present. Can be installed in any room containing a fuel burning appliance. Interlinked wireless technology allows the alarm to connect with other FXO alarm products for simultaneous alarm when smoke, heat or carbon monoxide is detected. Also suitable for caravan holiday homes. Interlinked via Wireless 10-Year Sealed Tamperproof Lithium Integrated Battery 86dB Alarm at 3m Test/Hush Button Interlinked Technology Simultaneous Alarm 10 Year Battery Life Interlinked via Wireless 10-Year Sealed Tamperproof Lithium Integrated Battery 86dB Alarm at 3m Test/Hush Button Interlinked Technology Simultaneous Alarm 10 Year Battery Life