Nest has a few great products that you can use in your home and control from your smartphone, one of those is the Nest Protect. This is a smoke alarm and a carbon monoxide alarm, so you can keep your home safe. Now unlike a thermostat, there's not much to do with your phone when it comes to a smoke alarm, but you are able to keep tabs on your home when you are not home. For instance, if a fire breaks out, your phone can let you know and then call the authorities to handle the fire.
The Nest Protect is currently a few bucks off of its regular price, coming down to just $94. That's a pretty great price for the Nest Protect, and with Nest working with a slew of other ecosystems like Alexa and Google Assistant, you'll be able to use your voice to control the Nest Protect and the Nest Learning Thermostat if you do pick up one of those. Picking up the Nest Protect from Amazon also means that you'll be able to get free two-day shipping and have the Nest Protect in your hands pretty quickly to put in your home or even your office.