









🌡️ Upgrade your comfort, save energy, and keep your data private—smart living made simple!
The Emerson Sensi Lite Smart Thermostat (ST25) offers easy DIY installation with no common wire required for most systems, Energy Star-certified energy savings of up to 23%, and robust privacy protections that ensure your data is never sold or used for ads. Compatible with Alexa, Google Assistant, and SmartThings, it provides remote control via a top-rated app and supports a wide range of HVAC systems with features like auto changeover and filter indicators—all backed by a 3-year warranty.


| Brand | Emerson |
| Model Name | Sensi Lite |
| Product Dimensions | 0.88"D x 5.07"W x 3.13"H |
| Controller Type | Amazon Alexa, Google Assistant, Hand Control, SmartThings |
| Special Feature | Auto Changeover, Daylight Savings Time Ready, Filter Indicator, Low Voltage, Programmable |
| Color | Black |
| Specific Uses For Product | Air Conditioner, Boiler, Furnace, Heat Pump |
| Temperature Control Type | Automatic or Programmable |
| Connectivity Technology | Wi-Fi |
| Included Components | (2) AAA Batteries, Installation Guide, Mounting Hardware, Sensi Lite Smart Thermostat, Wire Labels |
| Power Source | Battery or C-wire |
| Item Weight | 4.8 ounces |
| Voltage | 24 Volts |
| Shape | Rectangular |
| Display Type | LCD |
| Finish Type | Simple |
| Control Type | App Control |
| Control Method | App |
| Connectivity Protocol | Wi-Fi |
| Mounting Type | Wall Mount |
| Style | Simple |
| Backlight | Yes |
| Specification Met | Energy Star |
| Number of Batteries | 2 AAA batteries required. (included) |
| UPC | 786710568732 |
| Manufacturer | Emerson |
| Part Number | ST25 |
| Item model number | ST25 |
| Batteries | 2 AAA batteries required. (included) |
| Size | 0.88 x 5.07 x 3.13 |
| Finish | Simple |
| Pattern | Thermostat |
| Item Package Quantity | 1 |
| Special Features | Auto Changeover, Daylight Savings Time Ready, Filter Indicator, Low Voltage, Programmable |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Warranty Description | 3 years. |
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