Ecobee4 Smart Home Thermostat with Extra Sensor

Features

Two-room sensors included for twice the fun! You could even have up to thirty-two if you’re some kind of thirty-tworoomillionaire!
Unless your roommates are Snow Miser and Heat Miser
Newer sensors are backwards compatible, so you can go all-in if you want to
Compatible with gas, oil, electric, dual-fuel, conventional (2H/2C), heat pump (4H/2C), humidifier, dehumidifier, ventilator, HRV or ERV
Works with Apple Homekit, Amazon Alexa, Samsung SmartThings, IFTTT, and Google Assistant

Specifications

Dimensions:
Thermostat - Height: 4.29 in Width: 4.29 in Depth: 1 in
Trim Plate - Height: 6.2 in Width: 6.2 in Depth: 0.3 in
Room Sensor - Height: 1.7 in With stand: 2.1 in Width: 1.7 in Depth: 0.8 in
Voltage Type: Line Voltage
Digital display
Powering Methods: Wired 24VAC through terminals C and Rc
Wire Terminals: Rc, G, Y1, Y2, O/B, Rh, C, W1 (AUX1), W2 (AUX2), PEK
1 Lithium-ion batteries required (included)
ENERGY STAR® certified
Connectivity: Wi-Fi, 802.11 b/g/n @ 2.4 GHz. WEP 64, WEP 128, WPA and WPA2 encryption methods. DHCP (dynamic) or static IP addressing. Transport Layer Security (TLS). 915 MHz
Bandwidth: 15+ MB/month - Depending upon Alexa Voice Service usage
Compatible with SmartSensor
30 minutes to install thanks to an easy to follow installation guide and an in-app step-by-step walkthrough
Homeowners can save up to 23% annually on heating or cooling costs, plus ecobee pays for itself in under 2 years
Adjust your thermostat from wherever you are using your iOS (iPhone, iPad, Apple Watch) or Android device
Works with: Apple Homekit, Amazon Alexa, Samsung SmartThings, IFTTT, and Google Assistant
Please note: make sure your HVAC panel is fully closed. Some systems will not turn on if the cover panel has not been closed properly
Place them in the rooms that matter the most and have the temperature balanced throughout your whole home
Measuring both occupancy and temperature, sensors signal your ecobee Smart Thermostat to automatically switch to the right mode for comfort when you’re home or for savings when you’re not