Give your family’s comfort a smart upgrade. With the Sensi Lite smart thermostat, it’s never been easier. It all starts with a quick and simple installation—no common wire required with most systems.
Check your system compatibility before you buy. Compatible wiring is required for installation. If your wiring is not compatible, consult with a contractor for installation assistance.
| Model Number | ST25U |
| Total Width (inches) | 5.07 |
| Total Height (inches) | 3.13 |
| Depth (inches) | 0.88 |
| Thermostat Sensors | temperature, humidity, proximity, weather forecast |
| Remote Sensors | No |
| Powering Methods | Battery: 2 AAA batteries. Wired: 20 to 30 VAC through terminals C and Rc or Rh. 50/60 Hz |
| Compatible With | 24-Volt Heating & Air Conditioning Systems |
| Works With | Amazon Alexa, Google Assistant, and SmartThings |
| Security/Privacy | Wi-Fi 802.11a/b/g/n @ 2.4 GHz; WPA and WPA 2 encryption methods |
| ENERGY STAR® | Yes |
| Manufacturer Warranty | 3 years |
Instant Rebate: $50.00
Eligibility:
The DTE Customer price is only available to DTE residential electric customers. In the cart, you must first select “Apply Rebates” and your DTE electric service will be validated via the shipping address you enter. Qualified rebates will be applied to your order.
Customer is eligible for one thermostat rebate per account.
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Sensi Touch 2, Black |
Copeland Sensi |
Sensi Lite |
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| Retail Price | $209.99 | $129.99 | $89.99 |
| DTE Customer Price | $109.99 | $29.99 | $0 |
| Touch Display | ✔ | ✔ | |
| Geo-fencing | ✔ | ✔ | ✔ |
| ENERGY STAR® Certified | ✔ | ✔ | ✔ |
| Manufacturer Warranty (Years) | 3 | 3 | 3 |
| Works With | Amazon Alexa, Google Assistant, and SmartThings | Amazon Alexa, Google Assistant, Apple HomeKit, and SmartThings | Amazon Alexa, Google Assistant, and SmartThings |
Check for compatibility with the wiring in your home.
Smart Savers is a smart thermostat program that rewards you for reducing your energy use during periods of high demand. You save on your electricity bill by participating in Smart Savers events year-round, which also helps us maintain the reliability of the energy grid. You must be a DTE Energy residential or small business electric customer, have in-home Wi-Fi and central air conditioning or an air source heat pump to participate.
Upon enrollment, you agree to participate in Smart Savers Events, that will occur only on weekdays (no holidays) for up to four hours at a time between 12 p.m. - 8 p.m. You can anticipate up to 56 event hours year-round. During an event, your thermostat will never be adjusted by more than four degrees above your current setpoint.
By completing your purchase and installing your thermostat, you are eligible to receive a $50 bill credit, payable beginning in October 2025. Your continued participation will result in a $50 bill credit annually.
View our Smart Savers Terms and Conditions.
Maximum of one device purchase per eligible household. Rebate available while supplies last.
DTE residential or small business electric customers may qualify for an additional rebate if they meet these requirements:
- Are not participating in the SmartCurrents™ or CoolCurrents programs
- Have central air conditioning or an air source heat pump
- Have home Wi-Fi and agree to keep the thermostat connected to it
- Agree to install the thermostat within 60 days of receiving it
- Agree to participate in Smart Savers events
- Agree to program Terms & Conditions
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