The Hispec HSSA/PH/RF10-PRO is a mains-powered multi-sensor alarm designed for enhanced fire safety in domestic and light commercial properties. It combines both optical and thermistor sensors to detect slow-smouldering and fast-flaming fires with fewer false alarms. The unit features radio frequency interlinking, allowing connection with up to 20 compatible Hispec alarms without additional wiring, making system expansion simple. A sealed 10-year lithium battery provides reliable back-up power, while the Fast Fix base speeds up installation. An insect-resistant design helps maintain consistent performance in a wide range of environments. Ideal for hallways, bedrooms, landings, living rooms and dining areas. Interlinked via Wireless or when Hardwired 10-Year Sealed Tamperproof Lithium Integrated Battery 85dB Alarm at 3m Test/Hush Button Fast Fix Base Supplied for Quick & Easy Wiring Low Battery Warning Insect-Proof Design to Help Prevent False Alarms Connection With up to 20 Compatib...