Quell Worry-Free Bedroom Talking Voice Photoelectric Alarm

Key details: Photoelectric Smoke Alarm with 10 year long life sealed battery and Talking Voice Alarm which is proven to be more effective in waking children than an alarm only sound.; Deactivation Switch: Disables the alarm to allow for safe battery disposal once the unit has reached the end of its 10-year life.; End Of Life Notification: When it is time to replace the alarm, the sounder will chirp twice every 30 seconds.; 10 year warranty.; Certified to Australian Standards AS 3787.; Prevent dirt and debris from entering the smoke alarm chamber by regularly cleaning your alarm. Proper Installation.