Smoke Alarm Mains With Alkaline Battery Backup - Firehawk FHN450BB Heat Alarm Ideal for locations where smoke alarms can be falsely triggered by normal household fumes and vapours Heat Detector. Operating Voltage. 240 V. Sub Type. Heat Detector. Series. FHN450. Sound Level. 85dB. Power Indicator. Yes. Power Source. Mains Powered. Material Push-Fit for additional safety when removing and replacing the alarm head Replacing The Backup Alkaline Battery In An Ei 144RC Mains Powered Heat Alarm Fire Alarm In A Kitchen After It Started Beeping From Low Power Uk Image593155474 Suitable for installations complying to BS 5839-6 Grade D2 UKCA marked, CE marked, and Kitemarked to BS 5446-2: 2003 Low backup battery warning chirp can be silenced for up to 10 hours The Firehawk FHN450BB is a 230V mains-powered heat alarm with battery backup. Ideal for kitchens, garages and unoccupied lofts 230V mains powered with battery backup (3 x AAA alkaline batteries included) PLEASE NOTE: these FHN series alarms are not compatible with the older FH models Hardwire interlink up to 12 FHN450 heat alarms and FHN250 smoke alarms in the same system.
