Honeywell Home
Prestige® IAQ Thermostat with RedLINK®
Additional Options
- THX9421R5021WW/U THX9421R5021WW Basic Prestige® 2-Wire Thermostat with RedLINK™
- YTHX9421R5085WW/U YTHX9421R5085WW Basic Prestige Kit
- YTHX9421R5101WW/U YTHX9421R5101WW Basic Prestige Kit plus wireless outdoor sensor — Discontinued
- YTHX9421R5127WW/U YTHX9421R5127WW Basic Prestige Kit plus RedLINK® Internet Gateway — Discontinued
- YTHX9421R7001WW/U YTHX9421R7001WW Basic Prestige Kit, RedLINK® Internet Gateway, EIM, 4 Sens.
Prestige® IAQ Thermostat with RedLINK® - THX9421R5021WW/U; THX9421R5021WW Basic Prestige® 2-Wire Thermostat with RedLINK™ is backordered and will ship as soon as it is back in stock.
One thermostat. Advanced whole-home comfort
You're in control with the Honeywell Home Prestige® IAQ 2.0 Thermostat. This ENERGY STAR® certified 2-wire smart thermostat and Basic Prestige Kit lets you control your entire home's comfort via temperature, humidification, air-conditioning and ventilation. In addition, Redlink Technology lets you adjust these settings remotely.
This product is sold exclusively through our Professional Partners. Use the Find A Pro link below to locate one in your area.
Pro Products Offer:
- Extended Product Warranties
- Professional Experience
- Advanced Features for More Complex Systems
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Avis de livraison
|
Online orders for the FREE C-Wire Adapter are not available for shipping to Canada. However, you can still place your order through our Customer Service team at: retailcustomercare@resideo.com
When contacting us, please include:
- Name
- Shipping address (No PO Box)
- Promo code
Les commandes en ligne pour l'adaptateur de fil C GRATUIT ne sont pas disponibles pour la livraison au Canada. Par contre, vous pouvez quand-même placer votre commande par notre équipe du service à la clientèle à : retailcustomercare@resideo.com
Lorsque vous nous contactez, veuillez indiquer :
- Nom
- Adresse de livraison (pas de boîte postale)
- Code promotionnel
Prestige® IAQ Thermostat with RedLINK®
SKU: THX9421R5021WW/U
Product Overview
The Prestige® IAQ 2-Wire Digital Thermostat with Redlink features an effortless, 7-day programmable color touchscreen that provides control of temperature, dehumidification, and ventilation. Its high-definition, full-color display is easy to read. The ENERGY STAR® certified smart thermostat presents you with a series of simple questions and uses your answers to program itself.
No need to work through complicated settings and instructions. Optional add-ons include the Portable Comfort Control that allows you to adjust room temperatures from anywhere in the home.
Features
Prestige® IAQ Thermostat with RedLINK®
Adapts to Your Routine
Designed with a color touchscreen display, using the Prestige® thermostat is simple and intuitive. View the current temperature and humidity, make adjustments, program a heating and cooling schedule for every day of the week, or locate your installer's contact information for service.
Adaptive Intelligent Recovery
Over time, the Prestige® thermostat learns how long it takes your system to reach the ideal temperature you want. It activates the heating or cooling system earlier and helps make sure you're comfortable at the time you expect.
Expand Your System for Maximum Performance
Get the most from your Prestige® IAQ Kit with RedLINK®, EIM and Wireless Outdoor Sensors with compatible accessories. The Equipment Interface Module, duct and outdoor sensors expand the system's range for more data and visibility. Use RedLINK® to connect the thermostat to the internet for mobile alerts and control.
Features
Prestige® IAQ Thermostat with RedLINK®
Adapts to Your Routine
Designed with a color touchscreen display, using the Prestige® thermostat is simple and intuitive. View the current temperature and humidity, make adjustments, program a heating and cooling schedule for every day of the week, or locate your installer's contact information for service.
Adaptive Intelligent Recovery
Over time, the Prestige® thermostat learns how long it takes your system to reach the ideal temperature you want. It activates the heating or cooling system earlier and helps make sure you're comfortable at the time you expect.
Expand Your System for Maximum Performance
Get the most from your Prestige® IAQ Kit with RedLINK®, EIM and Wireless Outdoor Sensors with compatible accessories. The Equipment Interface Module, duct and outdoor sensors expand the system's range for more data and visibility. Use RedLINK® to connect the thermostat to the internet for mobile alerts and control.
Features
Prestige® IAQ Thermostat with RedLINK®
Adapts to Your Routine
Designed with a color touchscreen display, using the Prestige® thermostat is simple and intuitive. View the current temperature and humidity, make adjustments, program a heating and cooling schedule for every day of the week, or locate your installer's contact information for service.
Adaptive Intelligent Recovery
Over time, the Prestige® thermostat learns how long it takes your system to reach the ideal temperature you want. It activates the heating or cooling system earlier and helps make sure you're comfortable at the time you expect.
Expand Your System for Maximum Performance
Get the most from your Prestige® IAQ Kit with RedLINK®, EIM and Wireless Outdoor Sensors with compatible accessories. The Equipment Interface Module, duct and outdoor sensors expand the system's range for more data and visibility. Use RedLINK® to connect the thermostat to the internet for mobile alerts and control.
Features
Prestige® IAQ Thermostat with RedLINK®
Adapts to Your Routine
Designed with a color touchscreen display, using the Prestige® thermostat is simple and intuitive. View the current temperature and humidity, make adjustments, program a heating and cooling schedule for every day of the week, or locate your installer's contact information for service.
Adaptive Intelligent Recovery
Over time, the Prestige® thermostat learns how long it takes your system to reach the ideal temperature you want. It activates the heating or cooling system earlier and helps make sure you're comfortable at the time you expect.
Expand Your System for Maximum Performance
Get the most from your Prestige® IAQ Kit with RedLINK®, EIM and Wireless Outdoor Sensors with compatible accessories. The Equipment Interface Module, duct and outdoor sensors expand the system's range for more data and visibility. Use RedLINK® to connect the thermostat to the internet for mobile alerts and control.
Features
Prestige® IAQ Thermostat with RedLINK®
High-Definition Control
Designed with a color touchscreen display, using the Prestige® thermostat is simple and intuitive. View the current temperature and humidity, make adjustments, program a heating and cooling schedule for every day of the week, or locate your installer's contact information for service.
Adaptive Intelligent Recovery
Over time, the Prestige® thermostat learns how long it takes your system to reach the temperature you want. It activates the heating or cooling system earlier and helps make sure you're comfortable at the time you expect.
Expand Your System for Maximum Performance
Get the most from your Prestige® IAQ Kit with RedLINK®, EIM and 4 Sensors with compatible accessories. The Equipment Interface Module and additional sensors expand the system's range for more data and visibility. Or use RedLINK®to connect the thermost>at to the internet for mobile alerts and control.
Specifications
| Thermostat Type | Programmable; Digital; Low Voltage; RedLINK |
| WiFi | No |
| WiFi Specifications | Internet Gateway THM6000R7001/U Provides WiFi Capabilities |
| RedLINK | Yes |
| Color | Front: White, Side: White |
| Utility Rewards | No |
| Stages | Up to 4 Heat/2 Cool Heat Pump Systems; Up to 3 Heat/2 Cool Conventional Systems; See Equipment Interface Module |
| Modes of Operation | Heating; Cooling |
| Program Type | 7-Day Programmable; Manual / Not Programmed |
| Fan Function | On; Auto; Circulating |
| Display Type | Touch Screen |
| Display Language | Display selectable for English, French, or Spanish |
| Energy Star Certified | Yes |
| Features | ENERGY STAR Certified; Smart Response |
| Product Height | 3.5 in |
| Product Width | 4.5 in |
| Product Depth | 0.875 in |
| Warranty | 5 Years |
Specifications
| Thermostat Type | Programmable; Digital; Low Voltage; RedLINK |
| WiFi | No |
| WiFi Specifications | Internet Gateway THM6000R7001/U Provides WiFi Capabilities |
| RedLINK | Yes |
| Color | Front: White, Side: White |
| Includes | THX9421R5021WW Prestige® 2-Wire IAQ Thermostat; THM5421R1021 Equipment Interface Module; 2 Duct Sensors |
| Utility Rewards | No |
| Stages | Up to 4 Heat/2 Cool Heat Pump Systems; Up to 3 Heat/2 Cool Conventional Systems |
| Modes of Operation | Heating; Cooling |
| Program Type | 7-Day Programmable; Manual / Not Programmed |
| Fan Function | On; Auto; Circulating |
| Display Type | Touch Screen |
| Display Language | Display selectable for English, French, or Spanish |
| Energy Star Certified | Yes |
| Features | ENERGY STAR Certified; Smart Response |
| Product Height | 3.56 in; 91 mm |
| Product Width | 5.81 in; 147 mm |
| Product Depth | 1.5 in; 38 mm |
| Warranty | 5 Years |
Specifications
| Thermostat Type | Programmable; Digital; Low Voltage; RedLINK |
| WiFi | No |
| WiFi Specifications | Internet Gateway THM6000R7001/U Provides WiFi Capabilities |
| RedLINK | Yes |
| Color | Front: White, Side: White |
| Includes | THX9421R5021WW Prestige® 2-Wire IAQ Thermostat; THM5421R1021 Equipment Interface Module; C7089R1013 Wireless Outdoor Sensor; 2 Duct Sensors |
| Utility Rewards | No |
| Stages | Up to 4 Heat/2 Cool Heat Pump Systems; Up to 3 Heat/2 Cool Conventional Systems |
| Modes of Operation | Heating; Cooling |
| Program Type | 7-Day Programmable; Manual / Not Programmed |
| Fan Function | On; Auto; Circulating |
| Display Type | Touch Screen |
| Display Language | Display selectable for English, French, or Spanish |
| Energy Star Certified | Yes |
| Features | ENERGY STAR Certified; Smart Response |
| Product Height | 3.56 in; 91 mm |
| Product Width | 5.81 in; 147 mm |
| Product Depth | 1.5 in; 38 mm |
| Warranty | 5 Years |
Specifications
| Thermostat Type | Programmable; Digital; Low Voltage; RedLINK |
| WiFi | No |
| WiFi Specifications | Internet Gateway THM6000R7001/U Provides WiFi Capabilities |
| RedLINK | Yes |
| Color | Front: White, Side: White |
| Includes | THX9421R5021WW Prestige® 2-Wire IAQ Thermostat; THM5421R1021 Equipment Interface Module; THM6000R7001 RedLINK® Internet Gateway; 2 Duct Sensors |
| Utility Rewards | No |
| Stages | Up to 4 Heat/2 Cool Heat Pump Systems; Up to 3 Heat/2 Cool Conventional Systems |
| Modes of Operation | Heating; Cooling |
| Program Type | 7-Day Programmable; Manual / Not Programmed |
| Fan Function | On; Auto; Circulating |
| Display Type | Touch Screen |
| Display Language | Display selectable for English, French, or Spanish |
| Energy Star Certified | Yes |
| Features | ENERGY STAR Certified; Smart Response |
| Product Height | 4.06 in; 104 mm |
| Product Width | 4.06 in; 104 mm |
| Product Depth | 1.09 in; 28 mm |
| Warranty | 5 Years |
Specifications
| Thermostat Type | Programmable; Digital; Low Voltage; RedLINK |
| WiFi | No |
| WiFi Specifications | Internet Gateway THM6000R7001/U Provides WiFi Capabilities |
| RedLINK | Yes |
| Color | Front: White, Side: White |
| Includes | THX9421R5021WW Prestige® 2-Wire IAQ Thermostat; THM5421R1021 Equipment Interface Module; THM6000R7001 RedLINK™ Internet Gateway; C7089R1013 wireless outdoor sensor; C7189R1004 wireless indoor sensor; 2 Duct Sensors |
| Utility Rewards | No |
| Stages | Up to 4 Heat/2 Cool Heat Pump Systems; Up to 3 Heat/2 Cool Conventional Systems |
| Modes of Operation | Heating; Cooling |
| Program Type | 7-Day Programmable; Manual / Not Programmed |
| Fan Function | On; Auto; Circulating |
| Alerts and Reminders | Filter Change 1; UV Bulb 1 |
| Display Type | Touch Screen |
| Display Language | Display selectable for English, French, or Spanish |
| Energy Star Certified | Yes |
| Features | ENERGY STAR Certified; Smart Response |
| Power Source | Battery Operated |
| Product Height | 3.56 in; 91 mm |
| Product Width | 5.81 in; 147 mm |
| Product Depth | 1.5 in; 38 mm |
| Warranty | 5 Years |
GET STARTED
Professional installation gets professional results. Find an authorized professional near you to complete your installation.
GET STARTED
Professional installation gets professional results. Find an authorized professional near you to complete your installation.
GET STARTED
Professional installation gets professional results. Find an authorized professional near you to complete your installation.
GET STARTED
Professional installation gets professional results. Find an authorized professional near you to complete your installation.
GET STARTED
Professional installations gets professional results. Find an authorized professional near you to complete your installation.
Is your home compatible?
Knowing your home's wiring can make a difference. Follow these step-by-step instructions to identify if your current wiring is compatible with this thermostat.
Resources
REPLACEMENT PRODUCTS
Works With
Our products, apps and services work in harmony with leading smart home ecosystems.
Amazon Alexa
Microsoft Cortana
Google Assistant
Take it all with you
Gain control over their connected devices from anywhere at any time through the Total Connect® Comfort App. You can monitor and adjust heating and cooling usage, stay on top of indoor humidity levels, and automatically receive email alerts related to safety, comfort and energy. The app works with a wide range of popular connected devices.








