Multi-Zone Thermostats
Choose smart thermostat replacements for each existing low-voltage HVAC zone, and avoid confusing room sensors or fans with true zone control.
Emerson ST55U Smart Wi-Fi Thermostat: Smart Wi-Fi connectivity
You want lower energy bills without sacrificing comfort. The Emerson Sensi ST55U Smart Wi-Fi Thermostat makes it easy. It learns your home's unique schedule and adjusts the temperature automatically, so you're not cooling an empty house. The intuitive app lets you change settings from anywhere – perfect for coming home to a comfortable space after work.
Installation takes about 30 minutes with the built-in level and step-by-step guide. The bright white display is easy to read, even in low light. Plus, it works with Alexa and Google Assistant for hands-free voice control. You'll see savings on your monthly bill without thinking about it. Get the comfort you want and the control you need.
Features
- Energy-saving scheduling
- Easy DIY installation
- Compatible with most systems
- Remote control via app
- Smart Wi-Fi connectivity
General specs
- Brand: Emerson
- Model: ST55U
- Seller: Retailer
- ID: B09LVVW53Y
- Type: Smart Wi-Fi Thermostat
- Brand: Emerson
- Model: Sensi ST55U
- Weight: ~0.004 lbs
- Dimensions: ~1.1 x 4.5 x 4.5 feet
- Display Type: Touchscreen
- Power Source: Hardwired
- Compatibility: Smart Home Systems
- Temperature Range: 40°F to 99°F
- : Yes
- First listed by seller: April 27, 2026
If you are interested in more details, you can find full information on the seller's page.
Partner offer temporarily unavailable
Shipping options
Delivery to 
United States
United States
Available
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Emerson ST55U White Smart Wi-Fi connectivity
|
Nest Smart Thermostat Fog Programmable WiFi thermostat
|
Honeywell Th6220wf2006 Smart thermostat
|
Smart Thermostat for House Wide compatibility with 4 Heat/2 Cool
|
Honeywell RTH9580WF Wireless wifi connectivity
|
Braeburn 7205 White Programmable scheduling
|
|
| Brand | Emerson | GCP | Honeywell | Braeburn | ||
| Model | ST55U | Th6220wf2006 | RTH9580WF | 7205 | ||
| Color |
|
|
|
|||
| Rating |
|
|
|
|
|
|
| Price | €82.80 | €60.31 | €146.53 | €69.92 | €217.66 | €58.56 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Jun 24, 2026 | May 29, 2026 | Jun 19, 2026 | Jun 24, 2026 | Jun 24, 2026 | Jun 24, 2026 |
| Compatibility | Smart Home Systems | Furnace, Boiler, Heat pump, Residential HVAC systems | Apple iOS, Android | |||
Emerson ST55U White Smart Wi-Fi connectivity
€82.80
When this device makes sense
Product confidence
Reviews
There are no text reviews yet. If you have experience using this product, please leave a review. It will help other people decide whether this product is right for them.