Specifications
App CompatibleYesCompatible with 24V CoolingYesCompatible with 24V HeatingYesWorks WithAmazon Alexa, Google Assistant, SmartThingsVoice Assistant Built-inNoTouch ScreenNo
Key Specs
App CompatibleYesCompatible with 24V CoolingYesCompatible with 24V HeatingYesWorks WithAmazon Alexa, Google Assistant, SmartThingsVoice Assistant Built-inNoTouch ScreenNoMulti-Zone ControlYesAuto-Away ModeNoENERGY STAR CertifiedYes
General
Product NameSensi Lite Smart Programmable Wi-Fi Thermostat-Works with AlexaBrandEmersonModel NumberST25ColorBlackColor CategoryBlack
Dimension
Product Height3.13 inchesProduct Width5.07 inchesProduct Depth0.88 inchesProduct Weight0.3 pounds
Power
Wire ConfigurationC-wire, 3-WireWire TerminalsY (cooling), G (fan operation), C (common 24v power), W (heating), O (heat pump reversing valve), B (heat pump reversing valve), R (power), E (emergency heat)Power SourceHard wired, Battery-poweredRechargeable BatteryNoBattery SizeAAANumber of Batteries Required2Number Of Batteries Included2Voltage TypeLow voltage
Compatibility
App CompatibleYesCompatible Product(s)Air conditioners, Boilers, Furnaces, Heat pumpsCompatible with 24V CoolingYesCompatible with 24V HeatingYesWireless ConnectivityWi-Fi, Radio Frequency (RF - 2.4 Ghz/Low Latency)Frequency Band2.4 GHzOperating System CompatibilityAndroid, Apple iOSWorks WithAmazon Alexa, Google Assistant, SmartThingsVoice Assistant Built-inNo
Features
Programmable Period7 day24-Hour ProgrammingYesTouch ScreenNoMulti-Zone ControlYesTimerNoAuto-Away ModeNoBacklitNoDate/Time DisplayNoRemote Sensor CapableNoOutdoor Weather SensorNoPeriods Per Programmable Day8Detector TypeTemperature, HumidityEnergy Usage and HistoryYesFurnace Filter Change IndicatorYesKeypad LockYes
Certifications & Listings
ENERGY STAR CertifiedYes
Warranty
Manufacturer's Warranty - Parts3 YearsManufacturer's Warranty - Labor0 Years
Other
UPC786710568732
Smart thermostats have never been so easy! 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. Our top-rated mobile app lets you manage your home’s HVAC from anywhere, anytime. Plus, your usage activity and personal data stays private. That’s the power of putting Sensi’s over 100 years of HVAC experience on your wall.
Control from anywhere
The top-rated mobile app for Android and iOS devices makes it easy to control your comfort from a smartphone or tablet
Privacy Protection**
Sensi won’t sell your personal information to third parties or leverage your thermostat activity data for targeting or advertising purposes
Save about 23% on HVAC Energy***
ENERGY STAR-certified and packed with features that help you save money, including flexible scheduling, geofencing, remote access and usage reports
Easy DIY Installation
Do it yourself fast with a built-in level and simple step-by-step instructions. Works with the HVAC equipment found in most homes. No common wire (c-wire) required on most systems
Smart Maintenance
Sensi can help monitor the performance and efficiency of your HVAC system by delivering usage reports, alerts about your equipment, and maintenance reminders like filter replacement
Backed by HVAC Expertise
More than 100 years of experience with HVAC systems went into the development of Sensi
** PRIVACY PROTECTION: For full details, review the Sensi Privacy Policy under "Product Disclosures"
*** ENERGY SAVINGS: Calculated by comparing operation time for a nationwide example of Sensi users with temperature adjustments averages 4 degrees F vs. users with no adjustments. Savings vary based on equipment type/condition, insulation, climate temperature adjustment size/frequency
What's Included
Thermostat
Mounting Hardware
Installation Guide
Owner's Manual
Warranty Booklet
(2) AAA Batteries
Energy Ratings
Manuals & Guides
Installation Guide
Warranty Manual
Product Disclosure(s)
Search
Q: QuestionDoes it work with Siri?(1 answer)
A: AnswerIt doesn't have the option for Siri.Answered by Anonymous
Q: Questiondoes the thermostat lock? and is it a pin or button to unlock.(0 answers)
Asked by Anonymous
- A: AnswerUnit I've ever had does that. Otherwise it will just go on and off constantly
Answered by Anonymous
Emerson - Sensi Lite Smart Programmable Wi-Fi Thermostat-Works with Alexa - Black
4 payments starting at
$20.25
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Shipping
Reviews
Rating 4.7 out of 5 stars with 56 reviews
4.7Rating by feature
- 4.8Value
Rating 4.8 out of 5 stars
- 4.5Quality
Rating 4.5 out of 5 stars
- 4.5Ease of Use
Rating 4.5 out of 5 stars
Customers are saying
Customers admire the Sensi Lite Smart Programmable Wi-Fi Thermostat for its easy installation process, as it can be quickly set up by following the mobile app's instructions. They appreciate the convenience of the mobile app and the ability to remotely control their HVAC system from anywhere. The energy-saving features are also well-received, with users reporting increased energy efficiency. Additionally, customers value the thermostat's compatibility with various smart home platforms, including Amazon Alexa, Google Assistant, Apple HomeKit, and SmartThings.
This summary was generated by AI based on customer reviews.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Rated 5 out of 5 stars
SATISFIED HUDSONS!!
Working seriously working simlessly with my unit. It's like do what made for each other. Thanks for the marriage
Posted by RaymondH
Rated 2 out of 5 stars
Sensi Temp wasn't accurate.
I wanted to get a smart thermostat that didn't require a "C" wire. Well this fit the bill, installed it will average difficulty. After a few days, I noticed that I was always cold. I decided to test Sensi and was shocked to find it was off by 2 to 3 degrees. I had it set at 75 and it would cool to 72. No way to adjust that I could find, so back it went.
Posted by KennyK
Rated 5 out of 5 stars
It's easy to install!
Thermostats have been around for decades. Now that we are in the internet stage, smart thermostats are becoming the norm. In truth the main advantage of having a smart thermostat is having controls also in your smart phone. The Emerson is one smart thermostat. Most home HVAC systems are now much standardized and that they have a c-wire to provide power to the thermostat unit. So first things first, check if your system has a c-wire. If not you may have to purchase a separate c-wire kit and maybe even have a professional to install this thermostat. The box of the Emerson Sensi indicates that most systems may not need a c-wire in order for this to work. Luckily for me, my HVAC system at home has a c-wire which makes things simpler. Also, having a c-wire already means I really cannot validate Emerson’s claim about not having a c-wire for the thermostat to work since I am not an electrician. Installation of the device is pretty much simple. First remove your old thermostat and remember the wiring. This is most often color coded. But for the novice like me, take a picture. After removing the mount, attach the back mount of the Sensi. The beauty of the Sensi is that it has already a built in level which makes alignment simpler. Also screws are provided in the box. Attach the batteries and wire the new thermostat. This should be a simple process as the connectors are labelled and the wires are color coded. Then snap in the front panel to the base. After that you are ready for the setup process. Download the app and register online. Then the app itself will guide you through the setup process. Now you are ready to go. All the standard features are now available in your smart phone. But one added feature is that this device can also be connected to Google, Alexa or Samsung’s Smart Things. But if you are Apple centric, separate device is sold separately. Once that’s done, you are good to go. The whole process including installation of the device on your wall should take around thirty minutes assuming there are no snags. It’s easy peasy. This device is a high recommend!
Posted by msumulong