---
product_id: 706287644
title: "Honeywell THX9421R5021WW High Definition IAQ Touch Screen Thermostat with Red Link Technology, White"
brand: "honeywell"
price: "€ 8.52"
currency: EUR
in_stock: false
reviews_count: 1
category: "Honeywell"
url: https://www.desertcart.hr/products/706287644-honeywell-thx9421r5021ww-high-definition-iaq-touch-screen-thermostat-with-red
store_origin: HR
region: Croatia
---

# Honeywell THX9421R5021WW High Definition IAQ Touch Screen Thermostat with Red Link Technology, White

**Brand:** honeywell
**Price:** € 8.52
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Honeywell THX9421R5021WW High Definition IAQ Touch Screen Thermostat with Red Link Technology, White by honeywell
- **How much does it cost?** € 8.52 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/706287644-honeywell-thx9421r5021ww-high-definition-iaq-touch-screen-thermostat-with-red)

## Best For

- honeywell enthusiasts

## Why This Product

- Trusted honeywell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Redesigned Prestige IAQ full-color, touchscreen thermostat with RedLINK technology. Residential or commercial use. 7-day programmable. Up to 4H/2C heat pump or up to 3H/2C conventional. Works with the THM5421R1021 Equipment Interface Module (EIM), sold separately.

Review: Excellent Quality - An excellent quality product from Honeywell - as I would expect. This replaced an already installed programmable Honeywell thermostat. The installation was a breeze and the quality of the instructions great. The device qualifies me for some energy credits with my utility. The networking feature means I can control the temperature from anywhere I can connect to the internet.

## Features

- White front/white sides
- 7-day programmable
- Up to 4H/2C heat pump or up to 3H/2C conventional

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07NZ1KVBZ |
| Additional Features | Auto Changeover, Programmable |
| Best Sellers Rank | #431,108 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #540 in Home Programmable Thermostats |
| Brand | Honeywell |
| Brand Name | Honeywell |
| Color | White |
| Connectivity Protocol | RedLINK |
| Connectivity Technology | RedLink |
| Control Method | Touch |
| Control Type | Touch |
| Controller Type | Touchscreen |
| Customer Reviews | 5.0 out of 5 stars 4 Reviews |
| Display Type | color touchscreen |
| Included Components | Thermostat, Basic Prestige Kit |
| Item Weight | 9.6 ounces |
| Manufacturer | Honeywell |
| Manufacturer Part Number | THX9421R5021WW/U |
| Model Name | THX9421R5021WW |
| Model Number | THX9421R5021WW |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Product Style | Modern |
| Shape | Rectangular |
| Special Feature | Auto Changeover , Programmable |
| Specific Uses For Product | Heat Pump |
| Specification Met | eim |
| Temperature Control Type | Programmable Heating/Cooling |
| UPC | 852676536273 |
| Voltage | 24 volts |

## Product Details

- **Brand:** Honeywell
- **Color:** White
- **Controller Type:** Touchscreen
- **Model Name:** Prestige
- **Special Feature:** Auto Changeover, Programmable

## Images

![Honeywell THX9421R5021WW High Definition IAQ Touch Screen Thermostat with Red Link Technology, White - Image 1](https://m.media-amazon.com/images/I/517rHOXg1PL.jpg)
![Honeywell THX9421R5021WW High Definition IAQ Touch Screen Thermostat with Red Link Technology, White - Image 2](https://m.media-amazon.com/images/I/41GzQdY4fOL.jpg)
![Honeywell THX9421R5021WW High Definition IAQ Touch Screen Thermostat with Red Link Technology, White - Image 3](https://m.media-amazon.com/images/I/41JAAnO5XZL.jpg)
![Honeywell THX9421R5021WW High Definition IAQ Touch Screen Thermostat with Red Link Technology, White - Image 4](https://m.media-amazon.com/images/I/51YCT6g0FWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Quality
*by S***E on 13 April 2025*

An excellent quality product from Honeywell - as I would expect. This replaced an already installed programmable Honeywell thermostat. The installation was a breeze and the quality of the instructions great. The device qualifies me for some energy credits with my utility. The networking feature means I can control the temperature from anywhere I can connect to the internet.

## Frequently Bought Together

- Honeywell THX9421R5021WW Redlink Prestige IAQ Color Touchscreen Thermostat
- Ring Wired Doorbell Plus (Video Doorbell Pro) – Upgraded, with added security features and a sleek design (existing doorbell wiring required)
- LiCB CR2032 3V Lithium Battery(10-Pack)

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**Shop now:** [https://www.desertcart.hr/products/706287644-honeywell-thx9421r5021ww-high-definition-iaq-touch-screen-thermostat-with-red](https://www.desertcart.hr/products/706287644-honeywell-thx9421r5021ww-high-definition-iaq-touch-screen-thermostat-with-red)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-11-07*