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Emerson

Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"

    • Based on 6,237 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Apr 30
Order within 19 hours and 24 minutes
Available payment plans shown during checkout

Color: Black


Pattern Name: Thermostat


Features

  • PRIVACY PROTECTION*: Sensi wont sell your personal information to third parties
  • EASY DIY INSTALLATION: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation; Works with the HVAC equipment found in most homes. Common wire (c-wire) is required
  • SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports
  • SLEEK, MODERN DESIGN: The large color display features easy-to-read temperatures and intuitive menus. Available in black, white and silver to complement your home decor
  • CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices
  • SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement

Description

The Sensi Touch Wi-Fi Smart Thermostat puts comfort control at your fingertips whether you are at home or on-the-go. Just a tap of the easy-to-use touchscreen display or free mobile app lets you remotely access, change or program your home temperatures – Anytime. Anywhere. Designed to work with HVAC equipment in most homes (U.S. & Canada only), Sensi guides you through each step of the DIY installation process with proven, in-app instructions. A common wire (c-wire) is required for all system types. Refer to our online compatibility resources at sensicomfort.com/compatibility to make sure Sensi thermostat will work in your home. Once your Sensi thermostat is up and running, you can let your location automatically adjust your temperature settings with geofencing, or use the intuitive controls to create a custom schedule to fit your lifestyle and save money on HVAC related energy costs.


Manufacturer: ‎Emerson Thermostats


Part Number: ‎ST75


Item Weight: ‎1 pounds


Product Dimensions: ‎3.4 x 5.63 x 1.17 inches


Country of Origin: ‎Mexico


Item model number: ‎ST75


Batteries: ‎2 AA batteries required.


Is Discontinued By Manufacturer: ‎No


Size: ‎5.625" x 3.4" x 1.17"


Color: ‎Black


Style: ‎Black


Pattern: ‎Thermostat


Shape: ‎Rectangular


Power Source: ‎Ac/dc


Item Package Quantity: ‎1


Display Style: ‎Touchscreen


Mounting Type: ‎Wall Mount


Special Features: ‎Wifi thermostat


Included Components: ‎Electrical & Heating,Thermostats,household-thermostat-accessories


Batteries Included?: ‎No


Batteries Required?: ‎No


Battery Cell Type: ‎Alkaline


Warranty Description: ‎3 years.


Date First Available: April 22, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Company Does NOT back its product
This product works well for a year. Then it stopped. It is warrantied for 5 years. When I called for a replacement, they gave me an endless run-around. I needed to do this, that, and another thing, including paying a technician to check A/C unit and voltage. All done at $200+ expense. Then I needed an "extender" that boosted my Wi-Fi (even after I explained that the Wi-Fi and the thermostat had worked well for a year). I would never recommend this company or this product to anyone. ... show more
Reviewed in the United States on September 6, 2018 by John W.
    • Extremely Nice Modern Looking Thermostat....Not Perfect, But Really Good Overall
Review Image by David G. David G.
Review Image by David G. David G.
Review Image by David G. David G.
Review Image by David G. David G.
Review Image by David G. David G.
Review Image by David G. David G.
Review Image by David G. David G.
Review Image by David G. David G.
Review Image by David G. David G.
I have been in the market for a wi-fi thermostat for a LONG time (like 3 years). My main wish list of features was: -- Something MODERN looking...like a small cell phone stuck to the wall. -- Ability to remotely control my AC (obviously that's the whole point of a wi-fi thermostat) -- Reasonable price -- Easy programming -- Maybe cool bonus features like playing music, reading email, etc. Based on this list, I considered the Nest but then decided against it. Nests have really nice screens, but I don't like the round look. That does not say "modern" to me. Also, I work from home so I really didn't like the idea of having Nest "learn" when I am away (because when I am sitting in my office working, I am not away, but Nest would probably think I was gone). I also looked at a few other brands, but many of these were already looking older/tired. I kept waiting for someone to come out with a new model, but nothing new ever arrived. So, when I saw this Sensi thermostat I thought -- hmm, could that be the one? Well, I bought two of these a few days ago from my local big box home store (the blue one, not the orange one). They happened to have a 10% off sale (they were trying to compete with Amazon's Prime day), so the price was really reasonable. As for the units themselves -- they certainly met my criteria of looking like a cell phone stuck on the wall....so CHECK to that box! They also have a cool back light feature which Emerson refers to as a "night light". If you've ever seen the movie Ex Machina, there are scenes where they show some sort of keypad on the wall that's backlit with very bright blue LED lights. I always wanted something like that, but that's not really what you'll get here. First, the night light is very dim, and the light is just plain white. Sort of a missed opportunity there -- it seems like for maybe 5 cents more, they could have given you the option of multi-colored backlighting with various brightness levels. Ho-hum, maybe the next version will include that. Anyway, overall I am VERY impressed with these things. The backlight is still pretty cool, even though it's not terribly bright. The screen is also VERY nice....not quite as nice as a modern cell phone, but much sharper and better than other brands I've looked at. One minor complaint -- you can't actually leave the screen on full time. Instead, the screen will "sleep" after about 10-15 seconds. At that point, you have the option of allowing it to go full dark, or you can have the screen remain on with only the temp showing, but with a very dim screen. Some of the photos attached to my review show this -- if you see just the number 78 on the screen with nothing else, that's the "sleep mode". It's very dim, but the screen instantly returns to full brightness if you tap it anywhere, so no huge issue. I feel like this is not a big deal....do you really need your screen to remain on when you're not using it? I don't, but on the other hand the screen is so nice, it would be better to give consumers the option of leaving it on. My guess is they will push out a firmware update that add that option, and even if they don't, it's not a deal-breaker. If I have any other complaint, it's just that the default temperature setting did not seem to match my room temp (I have other thermometers in the same room reading 84 degrees when my Sensi is displaying 78). Yes, there is a setting in the app to adjust this, but you can only go +/- 5 degrees. In my case, I adjusted the setting by a full 5 degrees, and I am not sure that's enough. This isn't a life or death problem....you can always just set the cooling temp a few degrees lower to make the room comfortable (i.e., I used to keep my AC set to 78, but now I need to set it to 74 because the thermostat thinks the room is colder than it actually is). Having said all this, I still think these units deserve a strong 4.5 star review....which I'll round up to 5. Yes, they have a few minor issues, but overall they are a solid value if you're in the market for a new thermostat (and no, they don't play music, but really, that wasn't a serious requirement). P.S. These also were VERY easy to integrate with my Amazon Echo, so now I can change the temp just by yelling out: "Alexa, set downstairs to 76 degrees." This works instantly and seamlessly. Very impressive. P.P.S. I hate the lack of user-submitted photos, so I have attached a bunch...enjoy! ... show more
Reviewed in the United States on July 15, 2017 by David G. David G.
    • Blank Screen and no Wifi connection after 5 months
What a nightmare. Support is useless. All they know to say is: "Check the voltage on the c-wire." Okay, and then what??? My Sensi was working fine, then during the night the screen went completely blank and now I cannot make any changes to my a/c, which is stuck and running full blast. It will not connect to wifi, so I cannot use the app to turn off the a/c. The Emerson rep told me to turn off the a/c at the breaker. Really? Now they have finally agreed to send me a replacement, but it will take a week to arrive. And what am I supposed to do in the interim? The Sensi rep told me to go buy a "simple" thermostat to install until the Sensi replacement arrives. Fabulous customer service that. I'm going back to an old-fashioned thermostat that will work reliably, even if it doesn't have the fancy screen and Alexa options. Waste of $170. If you buy one of these, put a Square Trade warranty on it, as I can almost promise that you will need it. ZERO STARS! ... show more
Reviewed in the United States on October 11, 2018 by drlynn58
    • Garbage
Review Image by Speedy Geek Speedy Geek
Review Image by Speedy Geek Speedy Geek
Pros: - Sets up easy. Looks nice. Cons: - Geofencing is lame compared to the Lyric T5 because with the Sensi, you can't set what you want the "away" temps to be. It's automatic based off what the current temp is. - You can't use a schedule AND geofencing like the Liyric T5 can. - Plenty of times I would have the low set to 68 and the high set to 72... so it should heat to 68 if it falls below and cool to 72 if it goes above. What would happen? just at random times I would notice it was really hot inside, I would look at the thermostat and it was in heat mode, set to 68, but inside temp was 70. Some other times, I would notice it was getting cold over the course of an hour and suddenly the heat would come on when it fell to about 64!!! Attached pictures information (this happened a lot): - In one image, set to 68/71... been doing nothing for about a half hour, it let the temp get down to 67 and it just sat there doing nothing for at least an hour as the temp kept dropping. - In the other pic, still untouched and set to 68/71... heating, temp was got down to 64. NEVER should have gotten that low. I had a Lyric T5 once before in another home but they were difficult to setup, so when I got this new home, I ordered the Sensi. Like I said, it's easy to setup. But, last week I replaced it with a new Lyric T5. And it's a newer revision, so it was easy to setup now. And everything has been working as it should. I waited too long to return the Sensi. I don't have the box anymore. So, I have a... a... well it's not a spare thermostat, because I wouldn't bother with it if I had to. So, basically I have something that needs to be thrown in the garbage. ... show more
Reviewed in the United States on January 3, 2019 by Speedy Geek Speedy Geek
    • Both hardware & software have bugs
Review Image by Lee Lee
I installed many thermostats before. This one was easy to install. But, the app has bugs. I set up schedule on the app when I installed it. It disappeared 2nd day. I rebooted by turning off furnace power & it show the error message “Therstate is not working properly, ....” on the screen & no longer worked. There is no way a thermostat die after a few power on and off. What happens if there is power outage? App only works for one day. This product is not ready for prime time. I return it. ... show more
Reviewed in the United States on August 25, 2018 by Lee Lee

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