Fireangel ST-622 10 Year Thermally Enhanced Optical Smoke Alarm

The ground-breaking thermoptek technology in the ST-622Q provides responsiveness to all fire types in one alarm
Thermoptek sensing technology – detects slow smouldering fires and rapid rise in temperature, a fast response to all fire types
Battery powered smoke alarm – 10 years Panasonic battery lifespan (battery Included, never needs replacing)
Toast proof – reduces nuisance alarms and smart silence button
Test and smart silence button – allows the alarm to be silenced for up to 10 minutes in the event of a known false alarm
Sleep easy function – low battery end of life chirp can be silenced for eight hours so you sleep easy at night
Positioning – bedroom, living room, landing, hallways, dining room