Long-life mains-powered heat alarm with a lithium battery backup. Equipped with Thermistek technology and a radiant heat dish for faster response to common kitchen fires. Easy to install and suitable for use in kitchens, garages, or attics. Can be used with a Specification Smart RF Module to wirelessly interlink multiple alarms, creating a network (sold separately). • Interlinked via Wireless or Hardwiring • 230V AC Mains-Powered with Battery Backup • 10-Year Sealed Tamperproof Lithium Integrated Battery • 85dBA Alarm at 3m • Test/Hush Button • Thermistek Technology