---
product_id: 159837850
title: "T3R Wireless Smart Thermostat Kit - 7-Day Programmable Wall Thermostat with Intuitive Controls - 868 MHZ - Large Backlit Display, Flexible Scheduling & Compatibility"
brand: "honeywell home"
price: "€ 220.58"
currency: EUR
in_stock: true
reviews_count: 8
category: "Honeywell Home"
url: https://www.desertcart.hr/products/159837850-t3r-wireless-smart-thermostat-kit-7-day-programmable-wall-thermostat
store_origin: HR
region: Croatia
---

# 868 MHz RF wireless control Battery-powered with 2 AA included 7-day, 6-period daily scheduling T3R Wireless Smart Thermostat Kit - 7-Day Programmable Wall Thermostat with Intuitive Controls - 868 MHZ - Large Backlit Display, Flexible Scheduling & Compatibility

**Brand:** honeywell home
**Price:** € 220.58
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of the curve with smart, wireless warmth! 📲

## Quick Answers

- **What is this?** T3R Wireless Smart Thermostat Kit - 7-Day Programmable Wall Thermostat with Intuitive Controls - 868 MHZ - Large Backlit Display, Flexible Scheduling & Compatibility by honeywell home
- **How much does it cost?** € 220.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/159837850-t3r-wireless-smart-thermostat-kit-7-day-programmable-wall-thermostat)

## Best For

- honeywell home enthusiasts

## Why This Product

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

## Key Features

- • **Energy Smart Mode:** ECO mode and TPI learning optimize heating cycles to slash energy waste and reduce bills.
- • **Crystal Clear Display:** Large backlit LCD screen offers intuitive temperature and mode visibility, even in low light.
- • **Secure & User-Friendly:** Lockable interface prevents tampering, perfect for shared or public spaces, backed by a 2-year warranty.
- • **Seamless Wireless Control:** 868 MHz RF connectivity ensures hassle-free installation and flexible placement without messy wires.
- • **Tailored Comfort Scheduling:** Customize up to 6 heating periods per day across 7 days for ultimate energy efficiency and lifestyle fit.

## Overview

The Honeywell Home T3R Wireless Smart Thermostat Kit offers advanced 7-day programmable scheduling with up to 6 heating periods daily, compatible with a wide range of heating systems including gas boilers and heat pumps. Featuring a large backlit LCD for easy control, it operates on 868 MHz RF wireless technology powered by 2 AA batteries (included). Designed for energy efficiency with ECO mode and TPI learning, it also provides secure lock options and a sleek wall-mounted design, making it a top-tier choice for modern smart home heating management.

## Description

Honeywell Home T3R Wireless Smart Thermostat Kit - 7-Day Programmable Wall Thermostat with Intuitive Controls - 868 MHZ - Large Backlit Display, Flexible Scheduling & Compatibility : desertcart.co.uk: DIY & Tools

Review: Perfect Drayton Digistat +3 Replacement — 10-Min Install, Same Holes, Great Value (£40) - This was the perfect replacement for my broken Drayton Digistat +3. Installation took 10 minutes. No extra drilling as hole positions exactly the same as the Drayton. Work great so far! And a bargain for £40!
Review: Great replacement for old CM907 Thermostat - The screen on my old CM907 Timer/Thermostat failed and I found this M3 Timer/Thermostat an excellent and more functional replacement for the CM907. Very intuitive and easy to use menu system with more options than the CM907 (1 hour boost facility to name one enhancement). Although I will say the instruction sheets are more aimed at Trade or Professional Engineers / Installers than DIY fitting. But if you are familiar with programming any modern control device with a GUI interface, it is very similar to any other and actually quite easy to program. I note a lot of people complaining about the outer flap not closing properly and springing open again and having to use Blu-tack to hold it down... Don't believe this is a issue with design of the M3 itself, more the fitting instructions not being quite clear enough of how to fit the main unit into the wall/back plate. Initially my flat did keep springing out initially after following the installation diagrams as shown, but I found out as long as you firmly clip the top of the main unit in first like a hinge and then pivot it firmly downwards, clipping the bottom in last, this should then be a tight fit and the flap then close perfectly. Well mine did after doing that. I gave the M3 unit 5 stars all round as long as you understand modern GUI programming techniques and install it correctly. But would reduce this to 4 or less stars for the included M3 installation and programming instructions which could/should be better. I believe they are not aimed squarely at DIY installers without some basic skills and knowledge. Hope it last as long and as reliable as the CM907

## Features

- Warning:Not suitable for children under 14 years. For use under adult supervision
- Versatile Compatibility - Compatible with 24-230V on/off and OpenTherm systems, including gas boilers, combi boilers, and heat pumps. This smart thermostat for combi boilers is super easy to install.
- Customisable 7-Day Scheduling - Configure up to 6 independent heating periods per day with this wireless boiler control thermostat. Includes a pre-configured schedule for added convenience and automatic time clock adjustment.
- User Friendly Digital Display - Features a large backlit screen showing current and target temperatures, along with helpful mode and status icons. This wireless room thermostat ensures easy readability.
- Energy-Saving Features - Battery-operated (2AA included), featuring ECO mode, automatic time adjustment, and optimised TPI learning. These features help this smart heating thermostat reduce energy waste and lower heating bills.
- Secure Yet Simple - User-friendly interface is easy to program, with lock options to prevent tampering in public spaces. With its compact design this digital thermostat for central heating is suitable for various locations and comes with a 2 year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YNZJS3J |
| Backlight | Yes |
| Best Sellers Rank | 9,913 in DIY & Tools ( See Top 100 in DIY & Tools ) 22 in Home Programmable Thermostats |
| Brand | Honeywell Home |
| Brand Name | Honeywell Home |
| Colour | White |
| Connectivity Protocol | ZigBee |
| Connectivity Technology | RF |
| Control Method | Touch |
| Control Type | Button Control |
| Controller Type | Push Button |
| Controller type | Push Button |
| Customer Reviews | 4.4 out of 5 stars 1,575 Reviews |
| Display Type | lcd or led |
| Global Trade Identification Number | 05059085000035 |
| Included Components | The thermostat, the relay box, all the accessories and instruction manual |
| Item Dimensions D x W x H | 6.2D x 13.6W x 9.8H centimetres |
| Item Shape | Rectangular |
| Item Type Name | T3R Wireless 7-Day Programmable Thermostat by Honeywell Home |
| Item Weight | 585 Grams |
| Item height | 9.8 centimetres |
| Manufacturer | Honeywell Home |
| Material Type | Acrylonitrile Butadiene Styrene |
| Model Name | Y3C710RFEU |
| Model Number | Y3C710RFEU |
| Model name | Y3C710RFEU |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AA batteries required. (included) |
| Power Source | Battery Powered |
| Product Style | Wireless |
| Product dimensions | 6.2D x 13.6W x 9.8H centimetres |
| Special Features | Adjustable,Easy To Use,Wireless |
| Special feature | Adjustable,Easy To Use,Wireless |
| Specific Uses For Product | Boiler |
| Temperature Control Type | Heating |
| Unit Count | 1.0 Count |
| Voltage | 230 Volts |

## Product Details

- **Brand:** Honeywell Home
- **Model name:** Y3C710RFEU
- **Product dimensions:** 6.2D x 13.6W x 9.8H centimetres
- **Controller type:** Push Button
- **Special feature:** Adjustable,Easy To Use,Wireless
- **Colour:** White
- **Specific uses for product:** Boiler
- **Temperature Control Type:** Heating
- **Connectivity technology:** RF
- **Included components:** The thermostat, the relay box, all the accessories and instruction manual

## Images

![T3R Wireless Smart Thermostat Kit - 7-Day Programmable Wall Thermostat with Intuitive Controls - 868 MHZ - Large Backlit Display, Flexible Scheduling & Compatibility - Image 1](https://m.media-amazon.com/images/I/61kLFuviQWL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: how to change batteries**
A: Hello, thank you for your interest in our products. In order to replace the batteries in this thermostat, please lift the front cover, the battery compartment is at the bottom - you will need 2 x AA battery. If you need further assistance from our side, please contact our consumer support team by submitting a request at https://ensupport.getconnected.honeywellhome.com/s/contactsupport. Thank you.

**Q: I have a st 9400c , t3r it will work together? or you can recommend it something for me?**
A: Hello,

thank you for your interest in our products.

Unfortunately a ST9400C Programmer is not compatible with a T3R Programmable Thermostat.

The ST9400C Programmer will work with any of the following wireless thermostats: Y87RF Single Zone, HCW80, DT92E. 

Please note that the above does not refer to a direct binding of the programmer to any of the thermostats.

If you need further assistance from our side, please contact our consumer support team by submitting a request on our GetConnected HoneywellHome Website. 

Thank you.

**Q: Is there a mobile app that yiu can use to control the T3R?**
A: No. There is not a Mobile app. There is a receiver unit on a stand which we keep in the front room

**Q: is the  blue backlight permantly on or only when buttons are pressed**
A: Hello, thank you for your interest in our products.  The backlight will only stay on when a button is pressed, in standby it will go off.

If you need further assistance from our side, please contact our consumer support team by submitting a request on our GetConnected HoneywellHome Website. Thank you !

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Drayton Digistat +3 Replacement — 10-Min Install, Same Holes, Great Value (£40)
*by M***R on 1 January 2026*

This was the perfect replacement for my broken Drayton Digistat +3. Installation took 10 minutes. No extra drilling as hole positions exactly the same as the Drayton. Work great so far! And a bargain for £40!

### ⭐⭐⭐⭐⭐ Great replacement for old CM907 Thermostat
*by I***W on 24 October 2023*

The screen on my old CM907 Timer/Thermostat failed and I found this M3 Timer/Thermostat an excellent and more functional replacement for the CM907. Very intuitive and easy to use menu system with more options than the CM907 (1 hour boost facility to name one enhancement). Although I will say the instruction sheets are more aimed at Trade or Professional Engineers / Installers than DIY fitting. But if you are familiar with programming any modern control device with a GUI interface, it is very similar to any other and actually quite easy to program. I note a lot of people complaining about the outer flap not closing properly and springing open again and having to use Blu-tack to hold it down... Don't believe this is a issue with design of the M3 itself, more the fitting instructions not being quite clear enough of how to fit the main unit into the wall/back plate. Initially my flat did keep springing out initially after following the installation diagrams as shown, but I found out as long as you firmly clip the top of the main unit in first like a hinge and then pivot it firmly downwards, clipping the bottom in last, this should then be a tight fit and the flap then close perfectly. Well mine did after doing that. I gave the M3 unit 5 stars all round as long as you understand modern GUI programming techniques and install it correctly. But would reduce this to 4 or less stars for the included M3 installation and programming instructions which could/should be better. I believe they are not aimed squarely at DIY installers without some basic skills and knowledge. Hope it last as long and as reliable as the CM907

### ⭐⭐⭐⭐ Bought to replace parts
*by K***S on 19 November 2024*

We had one working fine for a couple of years, I accidentally knocked the thermostat off the wall and broke it. Had to buy the full pack to replace the thermostat unit, the receiver was working fine. One star off for Honeywell's "instructions" to pair the receiver and thermostat, they were less than useless!!! Googled a friendly handyman who walked the pairing process through in human language; now it's all working perfectly again. All in all a good system, whether you prefer to control manually or set timers for your heating. Just be careful if you do use the wall mounting (it's not flimsy, I was clumsy)!

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-06*