Emerson Sensi Thermostat 1F87U-42WF


The Emerson Sensi thermostat can help you save up to 30% in energy costs each year when you use a pre-set heating and cooling program schedule.

SKU: 1F86U-42WF Category:


Everything you want in a thermostat.

The Emerson Sensi thermostat is loaded with features designed to make it easier and more convenient than ever to operate your appliances to achieve the perfect level of comfort in your home. From a simple installation process to an intuitive mobile app that lets you adjust your thermostat settings from anywhere, the Sensi thermostat was built with you and your comfort in mind.

Built with you in mind.

The Sensi thermostat has been built to meet your needs for comfort, control and convenience. You have a lot of choice when it comes to buying a thermostat, but only one combines 75 years of experience and advanced digital technology in the perfect solution for your home.


Your schedule changes every day

Why can’t your thermostat be just as flexible? With 9 built-in schedules and custom options, you have control over your HVAC system like never before. Whether you feel a little warm or have to stay at work later than expected, the ability to change your thermostat settings is just a bit far with the SENSI smart app.


A touch away from the perfect temperature.

A sunny place in the house or an unexpected dark overcast day can significantly change the way you feel comfortable. With the Sensi thermostat, you can make adjustments to keep things comfortable, regardless of the weather. And because the Sensi thermostat is built by Emerson, it keeps the room temperature at +/- 1˚ F.

Not only more comfortable, but more practical.

With features such as permanent schedule retention and automatic day adjustment with 9 preset schedules, the Sensi thermostat makes it easy to manage your HVAC system. Add the convenience of the free Sensi mobile app that lets you make adjustments across the room or around the world, and you’ll quickly see how convenient the Sensi thermostat can be!

Save energy at all times

Now you don’t have to choose between saving money or staying comfortable. The Emerson Sensi thermostat can help you save up to 30% in energy costs each year when you use a pre-set heating and cooling program schedule. When using the intuitive mobile app, you can adjust your thermostat schedule around your life, so you’re not unnecessarily heating or cooling when no one is at home.


Full control of your smartphone.

A typical thermostat tells you the temperature and whether it is heating or air conditioning. With the free Sensi mobile app, you can learn a lot more. The app tells you everything from the current temperature and humidity level to the local weather and your current and future heating system and cooling schedule. And you see it all from anywhere.


  • Free mobile app (iOS or Android)
  • Easy to install
  • Universal compatibility
  • (C) not necessary (in most cases)
  • 7 days of programming
  • Temperature control accuracy +/- 1 ° F
  • Multi-system control
  • Equipment alerts
  • 3 year limited warranty
  • Local weather information
  • Indoor humidity sensor
  • Low profile design
  • Automatic heat change to cool
  • Secure cloud network
  • Dedicated technical support team

Additional information

Weight 5 lbs
Dimensions 2 × 12 × 6 in


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Manual / Digital Digital
Heating course 4
Air conditioning stages 2
7 days programming
Use with heat pump yes
Battery Power / Power Wire
Millivolt yes
Use with Gas / Oil yes
Use with electric furnace yes
Backlit display yes
Outdoor temperature sensor yes (weather temperature)
Indoor temperature sensor yes
Auto fan yes
Filter change yes
Humidifier filter change yes
Humidity display yes
Lock yes
WIFI control yes
White colour
Width 5 3/4 Inches
Depth 1 1/8 Inches
Height 3 3/42 Inches
3 year warranty