Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Compatible with Alexa, Energy Star Certified, C-wire Required, ST75 (Renewed)

Price: $120.76
(as of Feb 14, 2026 14:16:05 UTC – Details)


This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.
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.
MOST INSTALL IN 30 MINUTES OR LESS**: Use the built-in level, illuminated easy click terminals and step-by-step in-app instructions for quick DIY installation. System compatibility – Heating- 1, and 2 stages (W/E, W2), Cooling – 1 and 2 stages (Y, Y2), Heat pump – with auxiliary and emergency heat (O/B, W/E, W2), Fan- (G), Power- (C, RH, RC)
SMART HOME COMPATIBLE: Works with Amazon Alexa, Google Assistant, Apple HomeKit, Samsung SmartThings and Wink smart home platforms
CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the free mobile Sensi app for Android and iOS devices.
HD TOUCHSCREEN DISPLAY and ENHANCED FEATURES: Features HD touchscreen color display with backglow; and smart alerts to detect extreme temperature and humidity levels in your home.