Mains Powered Smoke Alarms & Heat Alarms with Alkaline Back-up Battery - Firehawk BB Series

The FHN250BB optical smoke alarms and FHN450BB heat alarms from Firehawk are mains-powered alarms with hardwire interlink, allowing up to 15 compatible alarms in the house to sound a warning to occupants when one detects a possible fire. These models feature replaceable AAA alkaline back-up batteries to ensure continued fire detection during a power cut, or if mains-power is turned off for other reasons like decorating or a blown light bulb. The unique Fast-Fix mounting base design allows alarms to be easily removed for cleaning and replacing batteries without needing to cut the power or worry about wiring, and the alarms will chirp an "end of life" warning (which can be silenced overnight) when the whole unit needs replacing after 10 years.

• 230V mains powered with alkaline battery backup
• 3 x AAA alkaline battery backup (included)
• 6 year manufacturer's warranty
• Available in two versions:
  • FHN250BB optical smoke alarm – suitable for most rooms including hallways, landings, living rooms, and bedrooms
  • FHN450BB heat alarm – suitable for rooms likely to have steam, dust, or fumes like kitchens and garages
• Also available with lithium back-up batteries that last the full 10 year life of the alarms
• Fast-Fix design for quick installation using Push-Fit connectors
• Up to 15 Firehawk FHN mains-powered smoke and heat alarms can interlink in one system
• Advanced sensor technology to ensure quick detection of fires and reduced false alarms
• End of life warning chirp can be silenced up to 10 hours
• Combined large test and silence button for ease of maintenance
• Suitable for installations complying to BS 5839-6 Grade D2
• CE marked and certified to EN 14604: 2005 (smoke alarm) / Kitemarked to BS 5446-2: 2003 (heat alarm)
• This alarm is also suitable for the updated 2022 Scottish legislation for fire alarms in homes

Please Note: these FHN series alarms are not compatible with the older FH models.