The 690MBX heat alarm is mains powered with 9V alkaline battery back up that will provide power to the unit in the event of a mains failure. Designed for use in the kitchen, garage or attic, up to 12 compatible smoke and heat alarms can be linked for simultaneous warning.
230V mains powered heat alarm 9V alkaline battery back-up Class A2 – Thermistor sensing technology Test button Low battery warning Multi-alarm interlink (up to 12 smoke and heat units) LED operating indicators Alarm source indicator
