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Honeywell Home Logo - Red

Prestige® IAQ Thermostat with RedLINK®

YTHX9421R5085WW/U

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Honeywell Home Logo - Red

Prestige® IAQ Thermostat with RedLINK®

YTHX9421R5085WW/U

One Thermostat. Advanced Whole-Home Comfort.

You're in control with the Honeywell Home Prestige® IAQ 2.0 Thermostat. This device lets you control your entire home's comfort via temperature, humidification, air-conditioning and ventilation. RedLINK™ Technology lets you adjust these settings remotely.

This product is available from a licensed professional installer

Works with Total Connect Comfort App

Learn More
Product Overview

Product Overview

The Prestige® IAQ Thermostat with RedLINK® features an effortless, 7-day programmable color touchscreen that provides control of temperature, humidification, dehumidification and ventilation. Its high-definition, full-color display is easy to read. The thermostat interviews you 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.

Primary Resideo App

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.

One of the Family

Love your existing devices? We do, too. Our products, apps and services play well with others so you can make home a little more harmonious. See how we support your home and fit into your life.
Works With...
Amazon AlexaIFTTTCortana

Specifications

Prestige® IAQ Kit with RedLINK® and EIM

Get Started

Professional installations gets professional results. Find an authorized professional near you to complete your installation.

Honeywell Home Logo - Red

Prestige® IAQ Thermostat with RedLINK®

YTHX9421R5085WW/U