1F86U-42WF : Emerson White-Rodgers Sensi Wi-Fi Thermostat, Programmable, Heat/Cool

Emerson White-Rodgers Sensi Wi-Fi Thermostat, Programmable, Heat/Cool.

Avoid wasteful heating and cooling - Have to work late tonight? Tell your Sensi thermostat to maintain your “away" temperature for a few more hours. Coming home early? Tell it to get the house ready sooner. Forget to change the thermostat before leaving for vacation? No problem.
Put yourself in control of your home temperature. Sensi's wifi-enabled technology adapts to your wishes whenever and from wherever you want. With other thermostats, the program you've entered calls the shots – unless you're there in your home to change it yourself.
You can install and program your Sensi thermostat yourself with your Smartphone app. No other thermostat on the market lets you do that.
The Sensi thermostat knows how to make itself at home — it fits in almost anywhere. The app tells you how to install your Sensi thermostat, Don't know what kind of heating and cooling system you have? The app will help you figure that out too.

Universal Application- 4 Heat / 2 Cool
Hardwired with battery backup (2 AA batteries included)
Multiple thermostats / multiple programs easily managed within Sensi app from multiple devices
Location based temperature & weather display and automatic Daylight Savings adjustment
Auto heat/cool changeover option
Permanent program retention during power loss
A/C compressor protection
Installing contractor contact information resides in the Sensi App

To provide your thermostat with 24 volt power and operate a millivolt system, please see "More Information" below.