10-year sealed, tamper proof lithium battery-powered carbon monoxide alarm with built in radio frequency technology for wireless interconnection. Features a high quality electrochemical sensor to detect the presence of carbon monoxide. Alarm will activate at 50ppm within 60-90 minutes, 100ppm within 10-40 minutes and 300ppm within 3 minutes. Can be wirelessly interconnected with up to 20 total Hispec RF10-PRO radio frequency fire safety devices, including smoke, heat and CO alarms (meaning that when one alarm sounds all interconnected alarms will also activate). Suitable for use in rooms containing a fuel burning appliance. Supplied with fixings. Interlinked via Wireless 10-Year Sealed Tamperproof Lithium Integrated Battery 85dB Alarm at 3m Test Switch Interconnect Up To 20 Wireless Detectors Easy Installation, No Wiring Required Silence Nuisance Alarms Low Battery Warning Interlinked via Wireless 10-Year Sealed Tamperproof Lithium Integrated Battery 85dB Alarm at 3m Test Switch Int...