Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, 100 Years of Expertise, Programmable, Wi-Fi, Data Privacy, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required

Very Happy with my investment!
I’m so happy with my new Sensi!First one didn’t work, but I didn’t know my existing C wire was not on the correct terminal on the control panel in the furnace.While awaiting my replacement to come and had already dropped off the (not)defective one to the UPS Store I was messing with the furnace for a new problem. That’s when I realized it.Anyway, the new one arrived a couple days ago so I installed it and works perfectly!Way adjustable, I can see it paying for itself quickly and ensuring my old furnace runs as efficiently as possible while helping it live longer. And the WiFi app is very easy to use.The fan control is awesome. You can set the fan to circulate on low for certain percentage of time per hour when the heat isn’t running.So when I leave for the office and the temp drops down, it circulates throughout the day to keep the temps equalized (and takes advantage of the free warmer air from the sunny side of my house. Same with overnight.Overall, I used to think WiFi thermostats were gimmicky, before I understood how cool they really are. I personally despise the company that makes the Nest, after reading about the Sensi and better understanding things I decided to go for it.Very happy I did. Just make sure you have a C wire and it works! With a voltmeter touching the RH (red) and C (blue), it needs to read between 24-28v. Mine read 27.5v so I was good to go. Works perfectly!

The perfect temperature control
Several of my customers have bought this setup, and they all love it! The sensors make a huge difference—people enjoy being able to control everything right from their phones and make sure the room they’re actually using stays at the perfect temperature. Most homes have thermostats placed near a warm hallway or doorway, so the reading is off and other rooms get too hot. This system fixes that completely!

Poor customer service (none) , don’t hookup to internet
I bought 2 of these for my house. Installed one so far and it seems to work so far (about an hour runtime so far. Here is what you need to know:  1) No way to contact SENSI unless you have the app, maybe. ( On perpetual hold with the phone number on the web site)  2) no way to register the product without the app. 3) If you happen to not use a smart phone, and use the thermostat as a stand alone thermostat, it seems the company doesn’t want to know about you, your purchase, or questions. 4) The instructions that come in the box with the stat are limited and pretty much require you to download the manuals from their web site to complete the setup after installation. That said, the stat looks nice, is pretty hefty for a stat which imply to me good build quality. There are a lot of different setups which is nice, once you download the manual. Might be easier and/or more settings with the app, but my primary reason for this stat was for the remote sensor ability. The stat is workable without the smartphone app, which I like, but the inability to register the stat, and not be able to chat or email the company for any questions is sad. Most people probably have smartphones, or want the features and convenience(?) of running the stat with their smartphones, and this would work better for them. But it leaves us old school folks, and people in poor or no cell service areas in the dark.7/9 UPDATE…cannot connect to internet despite following troubleshooting instructions given on app. (BORROWED A SMARTPHONE) after about 6 attempts, rebooting the stat, rebooting the router etc. each time, I get no signal what-so-ever. Starting to think these will go back since it doesn’t function with a smart phone, and you can’t get to all the needed features without a smartphone.AGAIN NO CUSTOMER SERVICEMoving to a 1 star unless I get some satisfaction from SENSI. Will try and get customer service once again…UPDATE 7-10After another day of trying to get the SENSI to connect to the internet, and making several attempts to contact SENSI (wait on the phone with no response), Going through the troubleshooting and rebooting routine with no positive result, I had to return due to what I consider defective equipment. There is a total lack of any customer service so if you get one ( I bought 2 and neither would connect) that works you’re probably good to go, if not, you are unable to get to certain settings that are only available through the smartphone app.A shame too as I liked the look of the stat, and it seemed like a well made unit.I did AC work for 30 years and was moved to the original purchase by their Copeland brand…who also make great AC compressors. Their stats are no-go in my experience.UPDATE 7-17Bought and installed a brand starting with an E, hooked right up to internet, easy to setup, remote sensors worked with no hassle. So far the new stats work as I had hoped a smart stat with remote sensors would. The app works well and has a lot more programmable options than the Sensi. And they answer the phone.

Très bon produit de très haute qualité, l’application est une vrai merveille. J’aime bien suivre la consommation d’énergie dans l’application.

The wifi circuits have failed already. The thermostat requires an Internet connection to control this. No local API is available. The thermostat is only a couple months old.