Honeywell Home T9 Wi-Fi Smart Thermostat with Sensor

Storefront Attributes

• Energy Star: Yes
• Water Sense: No
• Media Feature: kBEI5_SbDLU
• Media Feature Markdown: ### Before You Buy: Check if Your Equipment is Compatible REQUIRED: A C-wire (common wire) is needed for 24 VAC power. To determine if you have a C-wire, please consult Honeywell Home’s [**compatibility checker**](https://www.honeywellhome.com/en/general-pages/wi-fi-programmable-thermostat-home-compatibility{openNewTab}). If you do not have a C-wire, then a C-wire adapter is provided. You can also hire an HVAC contractor to help you install the C-wire and the thermostat. ### What's a C-Wire? A C-wire (common wire) is a low voltage power wire that many modern thermostats require for their features to work. Many older homes don’t have a C-wire because mercury and battery-powered thermostats didn’t require one. Therefore, it is important that you make sure your HVAC system is compatible with this Honeywell Home thermostat. If you currently have a Honeywell Home T-Series thermostat, your wiring may already be set to install the Honeywell Home T9. Thanks to their shared wall mount, replacing an old T-Series thermostat with a new T9 is as simple as snap-off, snap-on. If you don't have a C-wire, there's even an included adapter to cover that. **This thermostat is not compatible with electric baseboard heating systems.**
• Media Feature Disclaimer (JSON): { "icon": "install", "title": "Get Up and Running: How to Install", "description": "For more help installing:\n\n**[View Honeywell Home T9 Wi-Fi Smart Thermostat installation guide](https://www.honeywellstore.com/store/images/pdf/RCHT9510WFW2001W-Home-T9-WIFI-Smart-Thermostat.pdf{openNewTab})**\n\nCall Honeywell Home Customer Support at 1-800-633-3991" }
• On Sale: false
• PDP Info Banner Theme: None
• PDP Info Banner: $85 Smart Savers NY credit available. Learn more at [enrollmythermostat.com/oru.](https://enrollmythermostat.com/oru/{openNewTab})
• Show PDP Info Banner in Product Details: true
• DLC Certified: No

Thermostats-specific Attributes

• C-wire required: Yes
• Features: Alerts and reminders Connects to Wi-Fi Color display Comes with sensors Compatible with temperature sensors Location-based triggers Provides energy usage report Flexible scheduling Vacation mode

Thermostat Features

• Brand: Honeywell Home
• Features: Alerts and reminders Connects to Wi-Fi Color display Comes with sensors Compatible with temperature sensors Location-based triggers Provides energy usage report Flexible scheduling Vacation mode
• C-wire required: Yes
• Manufacturer Warranty: 2 Year Limited

Description

Get smart temperature control in the rooms you care about most with the Honeywell Home T9 Wi-Fi Smart Thermostat with Sensor. Choose comfort for the room you want, when you want or allow comfort to go where you go as you move about your home. This smart thermostat also helps save energy when you leave.   ### In the box * Honeywell Home T9 Wi-Fi Smart Thermostat with Sensor * Installation guide * UWP wall plate * Wireless sensor * Screws * Anchors * Wire labels * C-Wire adapter **Dimensions:** (H x W x D) 4.92 in. x 3.7 in. x .94 in.