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Emerson Sensi

Maximum Purchase:
3 units
Before you purchase this thermostat, please make sure it is compatible with your HVAC system. Not installing or activating the thermostat may result in a charge back of $50 to your account . Check compatibility here.
Limit 2 thermostats per residential electric account with Peak Time Savings sign-up bonus (must both be same brand). Limit 3 total thermostat rebates per residential electric account.

As local companies, Ameren Missouri and Emerson want to help our communities reduce their energy use and costs – especially during a time when everyone could use a little help. We are helping the community save on energy costs by giving away free Sensi smart thermostats to Ameren Missouri residential electric customers.

This opportunity is made possible when combining the Emerson discount, $50 instant energy efficiency program rebate, and $50 sign up bonus for automatic enrollment in the Peak Time Savings program.

Peak Time Savings is aimed at keeping costs down for the community and benefiting the environment, Peak Time Savings uses cutting-edge technology to make your smart thermostat even smarter. The program works in the background to learn preferred temperature ranges and how your home uses energy. During times of peak demand, the program uses this knowledge to help keep you comfortable while reducing your energy use.

The Sensi Wi-Fi Thermostat was designed to function seamlessly with your phone for comfort control on your terms. From across the room or across the country, you can use the intuitive app to remotely control and schedule your home comfort – Anytime. Anywhere. You can feel confident and comfortable about installing Sensi yourself. No experience required. Our easy-to-use app will walk you through the step-by-step process quickly.

Reader’s Choice BEST SMART THERMOSTAT by PCMag and Editor’s Choice BEST VALUE SMART THERMOSTAT by USA Today’s

We also recommend purchasing the Sensi Wallplate for $5.49 to make for a clean-looking installation.

This Wi-Fi Thermostat:

  • Saves about 23% on HVAC energy*: The ENERGY STAR® certified Sensi thermostat helps you save on your HVAC energy costs, with features like geofencing, 7-day flexible scheduling, remote access and in-app system usage.
  • Typically installs in 30 minutes or less**: Use the built-in level and step-by-step app instructions for a quick installation. Skip any extra work painting or patching the wall thanks to the standard thermostat size.
  • Offers exstensive compatibility and works with the HVAC equipment found in most homes - a c-wire is required for heat-only, cool-only and heat pump systems. Check system and router compatibility.
  • Works with Amazon Alexa, Google Assistant, Apple HomeKit (c-wire required), and Samsung SmartThings smart home platforms.
  • Monitors current day and historical heating, cooling and fan runtimes right in the app with usage reports.
  • Controls from anywhere. Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices.
  • Includes filter reminders and smart alerts. Receive a notification when it’s time to change your filter with service reminders. Detect extreme temperatures and humidity levels in your home with smart alerts.
  • Improves air circulation and indoor air quality by helping to regulate temperature and prevent buildup of particles and mold.
  • Features a low-profile sleek and minimalist design that looks great on your wall.
  • Takes up the same space as a traditional thermostat so you don't have to patch your wall or paint.
  • Includes a backlight perfect for night time or low lighting.

Product Warranty: 3 Year Limited

Visit the Sensi warranty page for detailed information.


Download a Spec Sheet
*Energy savings are calculated by comparing operation time for a nationwide sample of Sensi users with temperature adjustments averaging 4° in comparison to users with no adjustments. Savings vary based on equipment type/condition, insulation, climate & temperature adjustment size/frequency.
**Based on survey results of 2120 respondents that purchased and installed a Sensi thermostat in 2018, approximately 70% reported installing in 30 minutes or less. Adding a common wire may impact installation time. 
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