Nest should not need any introduction. Many of us have used or seen the Nest Thermostat. Nest Protect is another useful product worth checking out. It gives you an early warning before going off. It lights up yellow and speaks with a human voice. It tells you where smoke is or when carbon monoxide levels are rising. You can silence alarms by waving your hand.
Nest Protect monitors its batteries and sensors and lets you know when things are not right. You can’t see carbon monoxide but Nest Protect can. This amazing product is available for $129.