The Hispec HSSA/PE/RF10-PRO mains interlinked smoke alarm delivers dependable fire detection for domestic installations and rental properties. Powered by 230V AC with a 10-year sealed lithium battery backup, it ensures continued operation during mains failure. The optical sensor provides fast and accurate smoke detection with reduced false alarms. Built-in radio frequency technology allows wireless interlinking with up to 20 Hispec smoke, heat or carbon monoxide alarms, or direct hardwire interconnection where required. Suitable for use in hallways, landings, living rooms, dining rooms and bedrooms. Supplied with a Fast Fix base and fittings for straightforward installation. Interlinked via Wireless or when Hardwired 230V AC Mains-Powered with Battery Backup 10-Year Sealed Tamperproof Lithium Integrated Battery 85dB Alarm at 3m Test/Hush Button Interlink With Upto 20 Hispec Radio Frequency Alarms Fast Fix Base Suplied for Quick & Easy Wiring Low Battery Warning Interlinked via Wire...