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. *For full details, review the Sensi Privacy Policy under the “Products Documentation” section below. Note: if you sign up for a program with a third party, such as a utility or controller, details and terms for that program are between you and the third party, not Emerson, and may include additional data collection. Certain add-on services require additional data to operate as intended. These services are not required and are optional.
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
COMMON WIRE REQUIREMENTS: Common wire(C-Wire) required for heat pump and heat/cool only systems. C-wire not required on most systems
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
PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties or leverage your thermostat activity data for targeting or advertising purposes
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
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Reviews
10 reviews for Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Easy DIY, Works With Alexa, Energy Star Certified, ST25, Most Systems C-Wire Not Required, Except On Heat/Cool Only and Heat Pump System
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Guy E. Gilbert –
Easy to install, easy to use. Phone compatible.
I bought my Sensi SMART Thermostat on Amazon and it’s the best purchase I’ve ever made. It was very easy to install, and I’m not good with stuff like that. It’s color coded. It connects to your phone easily. And once on your phone you can program and set your thermostat from your phone from anywhere. It was a blessing. It also keeps the temperature way better than the bad thermostat that was in the house the contractor had in my house that they built. A 10 out of 10. Well worth the money. Thank you Sensi !!! Buy with confidence.
Amazon Customer –
Great thermostat! Easy to install and program!
Very happy with this thermostat! It was easy to install. I did it myself. I like being able to remotely control the temperature of our home. It’s low profile and I like that it doesn’t emit light 24/7. The digital numbers are large and easy to ready. The controls are not complicated and it was easy to set up a weekly schedule. I was happy with the very reasonable price too. I definitely recommend this thermostat.And to anyone who is interested, I have an old dinosaur of a boiler. Our home uses oil to heat our home and water. The thermostat is compatible with that type of heating.
BlackMantis –
Excellent Thermostat!
Absolutely love this thermostat. Simple yet saves you money. Love being able to use the app to control it and see my power usage. After about a week you can setup a schedule. Unlike the models where you have to set it up at the unit, no in this case. You use the app and it’s very simple. LED display is bright and always on. Easy to read from across the room. I use the app mostly. Installation took me about 10 minutes. Very easy and straightforward. I have a gas forced air furnace and AC unit outside. It controls them easily and without a C wire. I’ve installed the app in 4 phones and they have zero issues controlling the unit. The mounting plate has a built in level so mounting it level is a breeze. Hooked it up to my Alexa show and it works perfectly with it. Another thing I like is it shows the humidity level of the inside of your home. Nice feature to have. All and all I am very happy with the thermostat and its features. As winter approaches I can setup a schedule far easier than standing at a unit punching in times and days. The app makes this very streamlined. It also looks very nice on the wall.
BrFD –
Poor connectivity
I have a home that was built in 2006 and I work in a technical field (engineer) so I am familiar with troubleshooting hardware/software problems. Anyway, my problems with this unit started immediately. During installation, one is supposed to note the letter codes that the existing thermostat is connected to so that the new thermostat can be notified (via wifi and on app on your phone) how to program its terminals to match the original thermostat’s functionality. Unfortunately, my existing wire connection was not recognized as being valid by the app (even though my home is relatively new, has a C wire and works properly with the original controller). I didn’t let the this deter to me as I was sure I could fine a setup that would work through a little trial/error and voltage measurement. I was able to program my thermostat the first time without any issues; however, the setup I entered didn’t work (system produced heat when it should have been cold), so I tried to reprogram the thermostat for a 2nd try. When I searched for my wifi network on the app, I was informed that no networks could be found, which was strange since all my other devices (computers, tablets, TVs, etc) had no issues connecting to my wifi. No problem I thought because I was given the option of entering the name of a network manually, which I did. After entering the name I was asked to enter the network’s password twice, which is also strange since double entry is typically required for setting up online accounts, but not for connecting to your own wifi. Anyway, I entered the password twice and things seemed to be okay for a short time, but then the app kept informing me that it was losing its connection to the thermostat. I put the thermostat in “setup” mode by pressing the mode button for 4 seconds, but the thermostat would only stay in setup mode for a few seconds, and whenever it popped out of setup mode, the app would lose its connection again. What was really frustrating is that every time I tried to change the setup, I had to enter the network name and the password twice, which is pretty dumb for a “smart” device! I fought the system for about 2 hours and I was finally able to get another setup programmed, but that one didn’t work either. At this point I decided I was done fighting the thing and I returned it. Again, I’m a competent technical person and my heat pump is relatively new and in good working condition. If I can’t get it working smoothly, I don’t think many others will be able to either. Perhaps I just had a lemon, but my advice is to steer clear of this finicky little monster.
OCDSD619 –
Very easy installation and easy to use
This thermostat is a great value for the money. Installation could not have been any easier with the online installation instructions. You put in what your system has, like gas heating or a heat pump and it tells you what wires to use and where they go. It looks great and is very easy to use. I’ve checked the accuracy of the temperature with a thermal imagining camera, and the accuracy is surprising good. Good quality and will also give an energy savings compared to older models.
Amazon Customer –
I managed to get this working with my old brivis gas heating unit. This thermostat need C wire for gas heating.Old thermostat had only two wires. But the heater unit had C wire built-in which I rewired to connect to this thermostat to make it work.Setup is very straightforward. It’s being one month since I installed and working perfectly.Happy with thr product so far.Note that this is a US product and it has US units and location/ weather information is only related to US or Canada.But I use Alexa and Google Home to align with my location in AU.
Security man –
Great thermostat but make sure you have the right hook ups and wiring on your old furnace before removing your old thermostat or you will be in for a headache, basically do your research before tearing things apart and watch plenty of videos. Thermostat works great once it was hooked up and being able to control from your phone is a blessing.
Lora Wylie –
Amazing product. I now can control temps from anywhere
Colin Kestell –
This shouldn’t be sold globally. You can’t use it as a smart device outside Canada and the US.
Amazon Customer –
I had tried 2 different units of the same model and they both exhibited the same issues. The problem was a loss of wi fi signal and the system was going into off mode. Tried calling the help desk but was but on hold hearing the same message for 20 minutes. There was no message stating that there was a back log of customers. Appearance and simplicity I give it 5 stars but automated functionality I have to fail it.