Brk Mains Optical Smoke Alarm

The 660MBX is a mains powered thermally enhanced optical smoke alarm with a 9V alkaline battery back-up that will provide power to the unit in the event of a mains failure. This alarm is designed for fast detection of all fire types. Up to 12 compatible smoke and heat alarms can be linked for simultaneous warning. Mains powered smoke alarm with a 9V battery back-up Thermally enhanced optical sensing technology for fast detection of all fire types. Hardwire interconnect up to 12 units of a similar type, if one alarm activates they all activate Combined test and silence button Suitable for use in; hallways, landings, living rooms and bedrooms