Sensi ST55 Smart Thermostat
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About this product
Full listing name
Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST55
The Sensi Smart Thermostat ST55 connects via Wi-Fi and works with Amazon Alexa, Apple HomeKit, Google Assistant, SmartThings, and Vera. It features an LED display with button controls, plus app and voice programming for air conditioners, boilers, furnaces, and heat pumps. The thermostat supports DIY installation without a common wire in most setups, includes a filter indicator, and comes with a 3-year manufacturer warranty.
Price & purchase
MSRP $129.99
- $114.99View at Amazon
$129.99Save 12% Amazon
4.4 from 23,000 retailer reviews
Retailer context only. It contributes zero weight to TallyGo rank.See rankings across comparisons
0 distinct supporters 0 supported dimensions 0 established wins Early community signal
| Comparison | Standing | Votes | Support | Evidence | Score contribution |
|---|---|---|---|---|---|
| General smart HVAC thermostats | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
| Best overall | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
| Best value | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
| Easiest to use | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
| Most reliable | Unranked | 0 | 0.0% | Early signal · 0 voters | 0.00 |
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Product details
Description, highlights, and specifications from the retailer feed.
Sensi smart thermostats are designed for energy savings and data privacy – to give you full control of your home HVAC. With over 100 years of HVAC experience and manufactured by Emerson, you know our expertise already, even if you didn’t realize it. Emerson produces many of the HVAC parts that our smart thermostats control, so you can feel confident in the product you put on your wall. With our top-rated mobile app and easy installation process, customers of all comfort levels can make the switch to a Sensi smart thermostat. In addition, our customer service team of HVAC experts is always available to help you through any questions you might have. *For more information on Compatibility, Energy Savings, and Privacy Protection, please refer to the “Product Documentation” section below.
- PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
- EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
- SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports
- SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don’t have to patch and paint your walls
- SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement
- Color
- White
- Shape
- Rectangular
- Voltage
- 24 volts_of_alternating_current
- Brand Name
- Sensi
- Model Name
- ST55
- Item Weight
- 13.6 ounces
- Screen Size
- 5 inches
- Control Type
- Button Control
- Display Type
- LED
- Finish Types
- Glossy
- Manufacturer
- Copeland
- Power Source
- Corded Electric
- Material Type
- Plastic
- Mounting Type
- Wall Mount
- Product Style
- DIY
- Control Method
- App, Touch, Voice
- Controller Type
- Amazon Alexa, Apple HomeKit, Google Assistant, SmartThings, Vera
- Additional Features
- Data Privacy, Easy DIY Install, Energy Savings, Filter Indicator, Programmable
- Included Components
- Thermostat, free mobile app, 2 AA batteries, mounting hardware, wire stickers, installation guide, welcome guide with Sensi code, warranty booklet
- Number Of Batteries
- 2 AA batteries required. (included)
- Connectivity Protocol
- Wi-Fi
- Temperature Control Type
- Programmable, Smart/Remote
- Item Dimensions D X W X H
- 1"D x 5.88"W x 3.75"H
- Specific Uses For Product
- Air Conditioner, Boiler, Furnace, Heat Pump
- Manufacturer Warranty Description
- 3 years.
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