The Hispec HSSA/HCO/FF10 is a mains-powered multi-sensor alarm that provides dual protection against both heat from fire and dangerous carbon monoxide gas. Designed for rooms with fuel-burning appliances such as boilers, it combines a thermistor heat sensor with an electrochemical CO sensor for reliable early warning. The unit features a sealed 10-year lithium backup battery for continuous operation during power cuts and can be hardwire interlinked with up to 20 compatible Hispec alarms. Supplied with a Fast Fix base and fittings for straightforward installation. Interlinked when Hardwired 230V AC Mains-Powered with Battery Backup 10-Year Sealed Tamperproof Lithium Integrated Battery 85dB Alarm at 3m Test/Hush Button Interlinked via Hardwire or Wireless With Upto 20 Hispec Radio Frequency Alarms Dual Heat & Carbon Monoxide Detection Fast Fix Base Supplied for Quick & Easy Wiring Low Battery Warning Interlinked when Hardwired 230V AC Mains-Powered with Battery Backup 10-Year Sealed T...