Newlec NLHEAT Heat Alarm 230V Mains Voltage 9V Battery Back-up White

A mains-powered heat alarm that can be interlinked with up to 23 other mains alarms, be they ionisation, optical or heat. Once interlinked, the detection of the relevant danger by an individual unit will sound across all the connected alarms. • Heat sensor technology • Interlink with up to 23 other mains-powered alarms • 9V alkaline backup battery • Combined Test/Hush button • Auto-reset after activation • Certified by BSI to BS5446 Part 2:2003