10-year sealed tamper proof lithium battery-powered heat alarm with built in radio frequency technology for wireless interconnection. Features fixed temperature thermistor sensor which activates at 60°C for optimised fire detection, with fewer false alarms. Can be wirelessly interconnected with up to 20 total Hispec RF10-PRO radio frequency fire safety devices, including smoke, heat and CO alarms (neaning that when one alarm sounds all interconnected alarms will also activate). Suitable for use in kitchens, garages and lofts. Supplied with fixings. Interlinked via Wireless 10-Year Sealed Tamperproof Lithium Integrated Battery 85dB Alarm at 3m Test/Hush Button Wireless Interconnect Technology (20 Alarms can be Interconnected) Easy Installation, No Wiring Required Silence Nuisance Alarms Interlinked via Wireless 10-Year Sealed Tamperproof Lithium Integrated Battery 85dB Alarm at 3m Test/Hush Button Wireless Interconnect Technology (20 Alarms can be Interconnected) Easy Installation, N...