This Nest Protect Smoke Alarm connects to the existing WiFi network in your home or workspace to deliver real time alerts directly to your smartphone, making it easy to keep track of what's happening in your home or business. It is compliant with Australian smoke alarm standards, tests itself automatically and can be used for up to 10 years. This smoke alarm uses photoelectric fire detection and can detect carbon monoxide as well. You can hush the alarm using the Nest app on your smartphone or tablet, making it easy to silence false alarms. This smoke alarm connects to the mains power of your home or business so you don't have to worry about replacing batteries. It is certified to Australian standard AS 3786:2014. The alarm has a simple, modern white design which is sure to blend into the decor in your home or workspace. It has a friendly spoken voice to give early warnings in a calm way before sounding an alarm. The Nest Protect will light up as you walk underneath it, providing a soft light to help you find your way in the dark.