Interlink heat alarm with a 10-year sealed for life Panasonic battery. Thermistek technology provides quick detection of rapid temperature increases and alerts with a loud alarm. Can be used independently as a single unit or linked with up to 50 FireAngel Pro Connected products and the FireAngel Gateway to allow for remote notifications to the app. Ideal for use in kitchen, garages and utility areas in order to avoid false alarms caused by cooking and vehicle fumes. Interlinked via Wireless 10-Year Sealed Tamperproof Lithium Integrated Battery 85dBA Alarm at 3m Test/Hush Button Locate Feature Thermistek Technology Backwards Compatible with Wi-Safe2 Devices Sleek & Polished Design Interlinked via Wireless 10-Year Sealed Tamperproof Lithium Integrated Battery 85dBA Alarm at 3m Test/Hush Button Locate Feature Thermistek Technology Backwards Compatible with Wi-Safe2 Devices Sleek & Polished Design