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Sensi Smart Thermostat, Wi-Fi, Energy Star Certified, Alexa, 1F87U-42WF
- Extensive COMPATIBILITY***
- Save About 23% on Hvac Energy *
- Get Rebates
- Most Install in 30 Minutes or LESS**
$144.99
Price as of Oct 16, 2026, 7:47 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.
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Key features
Reader’s Choice BEST SMART THERMOSTAT by PCMag and Editor’s Choice BEST VALUE SMART THERMOSTAT by USA Today’s Reviewed
Extensive COMPATIBILITY***
Works with the HVAC equipment found in most homes - a c-wire is required for heat-only, cool-only and heat pump systems. To check system and router compatibility, refer to our online compatibility resources at sensi.emerson.com/compatibility
Save 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 energy usage reports
Get Rebates
Find utility rebates in your area through the rebate finder at sensi.emerson.com/rebates
Most Install in 30 Minutes or LESS**
With step-by-step instructions and video tutorials right in the mobile app, most people install Sensi in 30 minutes or less
Smart Home Compatible
Works with Amazon Alexa, Google Assistant, Apple HomeKit (c-wire required), Samsung SmartThings and Wink smart home platforms
Control From Anywhere
Remotely control your home comfort from your smartphone or tablet using the free Sensi mobile app for Android and iOS devices
Smart Alerts
Sensi features smart alerts to help detect extreme temperature and humidity levels in your home
Sensi Smart Thermostat, Wi-Fi, Energy Star Certified, Alexa, 1F87U-42WF
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