These are great if you have a larger home. Our home is about 4200 sq ft. I have one in 4 rooms now and with the mobile device I can see where the entire house is. Picture attached. These additional sensors help you get better control of your home and equalize your comfort no matter where you are.

Easy to set up and great fast delivery I was very surprise how quick I receive them.

We are very happy with our ecobee4 and the sensors. It functions just like the Nest but better with more options such as Alexa, sensor for each room, includes two but I purchased 4 more. The sensors really work. We use the follow me feature and every room that is occupied is the temp we set. Pros: It works, it is fun, and saves on energy costs! Another pro is the sensors! I have sensors all over my house and use them to help get the most accurate average temperature reading of my house. I love the fact that they can detect if a room is unoccupied and therefor will focus on making sure the rooms that are occupied are at the desired temperature. The sensors can also be used as a motion detector. Amazing!!! Cons: the Nests app is more responsive and with little to no delay. The Ecobee app is delayed about 30 sec or more. I’m hoping they can fix that with future updates. Overall it's a fantastic product. If you want to upgrade your thermostat from Basic thermostat or even Nest like we did. I highly recommend this.

Like my review for the Ecobee I think these are awesome as well. Immediately after activating them you will see that Ecobee recognize them and after that you will rename it if you want and that's it!!! It's very convenient because you'll be able to choose which one will participate for every comfort setting. I can assure you that you'll ENJOY IT!!!

These remote sensors allow me to average the temperature to keep things comfortable thought my house. You can also monitor the humidity on the main system and monitor the remote sensors to keep track of room temperature. The system worms great.