---
product_id: 584053216
title: "2 Pack SONOFF Zigbee Thermostatic Radiator Valve, TRVZB, Add-On Smart Radiator Valve For Smart Home Control, Easy Installation, Save Heating Costs, Works With Alexa, Google Home"
brand: "sonoff"
price: "A$149"
currency: AUD
in_stock: true
reviews_count: 8
category: "Sonoff"
url: https://www.desertcart.com.au/products/584053216-2-pack-sonoff-zigbee-thermostatic-radiator-valve-trvzb-add-on
store_origin: AU
region: Australia
---

# 6 months heating data tracking Long-lasting AA battery power Zigbee 3.0 seamless integration 2 Pack SONOFF Zigbee Thermostatic Radiator Valve, TRVZB, Add-On Smart Radiator Valve For Smart Home Control, Easy Installation, Save Heating Costs, Works With Alexa, Google Home

**Brand:** sonoff
**Price:** A$149
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your heating game — smart, sleek, and savings-ready! ⚡

## Quick Answers

- **What is this?** 2 Pack SONOFF Zigbee Thermostatic Radiator Valve, TRVZB, Add-On Smart Radiator Valve For Smart Home Control, Easy Installation, Save Heating Costs, Works With Alexa, Google Home by sonoff
- **How much does it cost?** A$149 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/584053216-2-pack-sonoff-zigbee-thermostatic-radiator-valve-trvzb-add-on)

## Best For

- sonoff enthusiasts

## Why This Product

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

## Key Features

- • **Smart Home Harmony:** Effortlessly sync with Alexa, Google Home & Home Assistant for voice & app control.
- • **Energy-Saving Automation:** Auto shut-off during ventilation plus frost protection cuts heating costs smartly.
- • **Precision Comfort Control:** Valve opening from 0% to 100% with 1% accuracy ensures your perfect room temperature.
- • **Universal Fit & Easy Setup:** Fits most M30 radiator valves with included adapters; install in minutes without hassle.
- • **Insightful Heating Analytics:** Access daily, weekly & monthly consumption data to optimize your energy use like a pro.

## Overview

The 2 Pack SONOFF Zigbee Thermostatic Radiator Valve (TRVZB) is a smart home essential designed for seamless Zigbee 3.0 integration with Alexa, Google Home, and Home Assistant. It offers precise temperature control with 1% valve opening accuracy, energy-saving features like auto shut-off during ventilation, and frost protection. Compatible with most M30 radiator valves, it supports easy installation and provides up to 6 months of heating consumption data for smarter energy management. Powered by AA batteries, this reliable, responsive valve transforms your heating system into an efficient, voice-controlled smart solution.

## Description

2 Pack SONOFF Zigbee Thermostatic Radiator Valve, TRVZB, Add-On Smart Radiator Valve For Smart Home Control, Easy Installation, Save Heating Costs, Works With Alexa, Google Home : desertcart.co.uk: DIY & Tools

Review: Smart radiator valves - ⭐️⭐️⭐️⭐️⭐️ Smart Heating Made Simple – Seamless Integration with Alexa, Google & Home Assistant I’ve been using the Sonoff Zigbee Radiator Valve for around 2 year's now, and I’m genuinely impressed by how much control and convenience it adds to my home heating setup. 🛠️ Setup & Ease of Use Installation was straightforward. The valve comes with multiple adapters, so it fit my existing radiator without any hassle. Once mounted, it calibrated automatically and was ready to go. The interface is intuitive, and the app makes scheduling and manual adjustments a breeze. Even if you're not super tech-savvy, you'll find it easy to get started. 🌐 Smart Home Integration - Alexa & Google Assistant: Voice control works flawlessly. I can say “Alexa, set the radiator to 21 degrees,” and it responds instantly. Same goes for Google Assistant—no lag, no fuss. - Home Assistant: This is where the Sonoff TRVZB really shines. I paired it using Zigbee2MQTT and ZHA, and it integrated beautifully. You get access to advanced features like historical data tracking, temperature calibration, and automation triggers. It’s perfect for anyone building a truly smart home. 🌡️ Features That Matter - Open window detection is a game-changer—it automatically shuts off the radiator to prevent energy waste. - Child lock and frost protection add peace of mind. - You can even group multiple valves and control them all with one tap or voice command. 🔋 Battery Life Runs on standard AA batteries. Just a heads-up: avoid rechargeable ones unless you’re sure they’re compatible. Once installed properly, battery life has been solid so far. 💬 Final Thoughts If you're looking to upgrade your heating system with smart controls, the Sonoff Zigbee TRVZB is a fantastic choice. It’s reliable, responsive, and integrates with all major platforms. Highly recommended for anyone serious about energy efficiency and home automation.
Review: Easy to install and looks great. It works well with Home Assistant. - 🌡️ This thermostat is an attractive device in light plastic with a white LED display. I looked at several TRVs, and there were several factors that influenced my buying choice. With this TRV, I liked that there was no unnecessary distance between the valve bottom and the connector to the radiator. I saw this in other valves and thought that this one by Sonoff looked far better. I also like the LED display that shines through the plastic over the backlit LCD display that some TRVs give you. Everything came well packaged and protected in its box. 🌡️ Setup is straight-forward, and I recommend that you read the online manual. This goes through everything you need to know and has an English section at the end. I used some long-life batteries, and after inserting them, I just needed to install the valve. During installation, I managed to press the button that flips the display upside down. This was easy to rectify once I looked at the manual. 🌡️ The thermostat is relatively easy to fit. My one concern is that you definitely need to measure the clearance around your radiator, particularly between the valve and the wall. This thermostat is not the bulkiest out there by any means, but it is substantial, and this only cleared my wall by about 1mm. Otherwise, fitting took a few minutes for me. My radiators are all modern and have the standard M30 valve that this TRV fits without having to resort to the included adapters. A key feature that attracted me to this thermostat was that the connection is made of metal, which gave me confidence that there would be a strong connection to my radiator. A metal connection, not plastic, was a deal-breaker for me. 🌡️ The other criteria for purchasing is that I am quite happy with the brand and I have many Sonoff devices, including my gateway. My connection protocol is ZHA over Zigbee, and I expected a TRV from the same manufacturer of the gateway to work seamlessly, which it did. Not that I expected anything different as this is a Zigbee 3.0 device; I just wanted peace of mind. 🌡️ I used some long-life lithium batteries to run this. They are expensive, but I wanted to get the most out of this valve before needing to swap the batteries once more. I was quite happy with not having the batteries provided, as I think that this is a personal choice. I could have just installed a couple of generic batteries from the big box I purchased from my local supermarket, and that would have been no better than what would have been provided if the batteries were included. I opted for high-quality ones instead. 🌡️ Pairing was straight forward, and thankfully this is one of those Zigbee devices that seems to tolerate pairing in situ rather than close to the hub gateway. I did need to pair it twice, as the first time was successful, but the TRV was unavailable in Home Assistant. I paired again, and everything sprung to life. I will not be using the app or eWeLink as I have Home Assistant. There is some hype about interoperability with Google and Alexa, and I can indeed control this valve in that way, but that has nothing to do with the valve itself. Once you have the device paired with your hub, then you can connect up external services to do whatever you want, and I can indeed ask Alexa to change the temperature, but only because I have paid to make that happen and have leveraged the capabilities of my hub and network. Some Alexa devices can act as a Zigbee gateway and so could pair with this TRV, but I have not needed to test this as I have a more capable system already installed. 🌡️ I won’t go into the operation as this device uses the thermostat card, and it depends on the protocol and hub platform you are using. The TRV was very responsive to commands, although the only downside, which is common to all electric TRVs, is that you can hear the motor when the temperature demand changes. I am also not sure if I like that the valve lights up when it is dark in the room. Again, all similar TRVs do this, and I have not discovered if I can control this. I suppose I will just have to put up with it. On the whole, I am quite happy with it and the way that it functions. You will probably need to have other temperature sensors rather than rely on the one built into the TRV, which is next to the radiator. 🌡️ I do like that the valve has frost protection, but that’s only going to work if I have created automations to allow this TRV to demand heat in those situations. I mention this because the work to install this TRV is the tip of the iceberg when it comes to getting the most out of a TRV in home automation, and this is true of all such devices. Looking at the built-in temperature sensor in the TRV, it seems accurate enough against the ambient temperature in the room where it was installed. The TRV also has window detection, which simply detects a rapid drop in temperature. This is a feature that I won’t be using, as there are other reasons why this feature can be fooled, such as opening the door to the room where the TRV is located and letting in cold air. I prefer to put a separate sensor on the window and detect opening to switch off the TRV that way. 🌡️ I installed this device on a radiator in my daughter’s bedroom. I can automate the heating to keep the room cool when she is away at university and warmer when she returns home. This is the neat thing about TRVs like this: if you know what you are doing, you can get creative. This device lives up to that and is very easy to work with. Manual control is also easy, and you just turn the control on the top to set the temperature. I recommend putting it into child lock mode, as the control is very easy to turn. I am very happy with how the valve performs, and the control is quick and responsive. ✔️

## Features

- Home Assistant Compatible: Integrates seamlessly with Home Assistant using Zigbee2MQTT, offering smart thermostat control, energy efficiency, and convenience for managing your home's heating system effortlessly.
- Save Energy: The SONOFF smart radiator valve will automatically turn off when ventilating to save money and energy. It also supports 6 months of historical data queries, for daily, weekly, and monthly heating consumption views.
- Smart Control: Our thermostatic radiator valve has various smart functions, including APP remote control, voice control, set schedule, group control, etc, making your life smart. Enjoy more functions of the radiator thermostat valve via the eWeLink APP, it requires a Sonoff Zigbee 3.0 hub, such as ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost, and more.
- Valve Percentage Opening: The SONOFF Zigbee radiator valve supports opening ratios from 0% to 100%, with an accuracy of 1%. This design is to bring a comfortable room temperature.
- Compatible with Most Valves: The SONOFF radiator thermostat fits existing ‘M30 x 1.5mm’ radiator valves, and the valve adapters in the package are compatible with most heating systems and manufacturers. Note: TRV doesn't include 3 AA batteries.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CFY2FJW8 |
| Batteries required | No |
| Best Sellers Rank | 2,475 in DIY & Tools ( See Top 100 in DIY & Tools ) 25 in Central Heating System Accessories |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,026) |
| Date First Available | 17 Aug. 2023 |
| Included components | Manual |
| Item model number | TRVZB |
| Item weight | 154 Grams |
| Number of pieces | 2 |
| Product Dimensions | 5.84 x 0.49 x 5.84 cm; 154 g |
| Specific uses | Heat Pump |
| Specification met | CE |

## Product Details

- **Brand:** SONOFF
- **Colour:** White
- **Connectivity technology:** Zigbee
- **Controller type:** Amazon Alexa, Google Assistant, IFTTT, Push Button
- **Included components:** Manual
- **Model name:** TRVZB
- **Power source:** Battery Powered
- **Special feature:** Frost Protection
- **Specific uses for product:** Heat Pump
- **Temperature Control Type:** Heating

## Images

![2 Pack SONOFF Zigbee Thermostatic Radiator Valve, TRVZB, Add-On Smart Radiator Valve For Smart Home Control, Easy Installation, Save Heating Costs, Works With Alexa, Google Home - Image 1](https://m.media-amazon.com/images/I/51WOi4caM-L.jpg)

## Questions & Answers

**Q: Can I connect the TRVZB heating thermostat without a gateway?**
A: No, you need to pair with a SONOFF Zigbee Gateway that uses the Zigbee 3.0 protocol via the eWeLink app under a 2.4 GHz network condition, such as SONOFF NSPanel Pro, SONOFF ZB Bridge Pro, SONOFF ZB Bridge Ultra, SONOFF ihost...

**Q: Not sure if the thermostat is suitable for the radiator valve in your home?**
A: The TRVZB thermostat fits existing "M30 x 1.5 mm" radiator valves. Also included in the package are 6 adapters, 3 Danfoss valves (RA/RAV/RAVL), Calefi valve, Giacomini valve, thread size M28 x 1.5 mm valve.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Smart radiator valves
*by K***N on 4 September 2025*

⭐️⭐️⭐️⭐️⭐️ Smart Heating Made Simple – Seamless Integration with Alexa, Google & Home Assistant I’ve been using the Sonoff Zigbee Radiator Valve for around 2 year's now, and I’m genuinely impressed by how much control and convenience it adds to my home heating setup. 🛠️ Setup & Ease of Use Installation was straightforward. The valve comes with multiple adapters, so it fit my existing radiator without any hassle. Once mounted, it calibrated automatically and was ready to go. The interface is intuitive, and the app makes scheduling and manual adjustments a breeze. Even if you're not super tech-savvy, you'll find it easy to get started. 🌐 Smart Home Integration - Alexa & Google Assistant: Voice control works flawlessly. I can say “Alexa, set the radiator to 21 degrees,” and it responds instantly. Same goes for Google Assistant—no lag, no fuss. - Home Assistant: This is where the Sonoff TRVZB really shines. I paired it using Zigbee2MQTT and ZHA, and it integrated beautifully. You get access to advanced features like historical data tracking, temperature calibration, and automation triggers. It’s perfect for anyone building a truly smart home. 🌡️ Features That Matter - Open window detection is a game-changer—it automatically shuts off the radiator to prevent energy waste. - Child lock and frost protection add peace of mind. - You can even group multiple valves and control them all with one tap or voice command. 🔋 Battery Life Runs on standard AA batteries. Just a heads-up: avoid rechargeable ones unless you’re sure they’re compatible. Once installed properly, battery life has been solid so far. 💬 Final Thoughts If you're looking to upgrade your heating system with smart controls, the Sonoff Zigbee TRVZB is a fantastic choice. It’s reliable, responsive, and integrates with all major platforms. Highly recommended for anyone serious about energy efficiency and home automation.

### ⭐⭐⭐⭐⭐ Easy to install and looks great. It works well with Home Assistant.
*by A***R on 29 November 2023*

🌡️ This thermostat is an attractive device in light plastic with a white LED display. I looked at several TRVs, and there were several factors that influenced my buying choice. With this TRV, I liked that there was no unnecessary distance between the valve bottom and the connector to the radiator. I saw this in other valves and thought that this one by Sonoff looked far better. I also like the LED display that shines through the plastic over the backlit LCD display that some TRVs give you. Everything came well packaged and protected in its box. 🌡️ Setup is straight-forward, and I recommend that you read the online manual. This goes through everything you need to know and has an English section at the end. I used some long-life batteries, and after inserting them, I just needed to install the valve. During installation, I managed to press the button that flips the display upside down. This was easy to rectify once I looked at the manual. 🌡️ The thermostat is relatively easy to fit. My one concern is that you definitely need to measure the clearance around your radiator, particularly between the valve and the wall. This thermostat is not the bulkiest out there by any means, but it is substantial, and this only cleared my wall by about 1mm. Otherwise, fitting took a few minutes for me. My radiators are all modern and have the standard M30 valve that this TRV fits without having to resort to the included adapters. A key feature that attracted me to this thermostat was that the connection is made of metal, which gave me confidence that there would be a strong connection to my radiator. A metal connection, not plastic, was a deal-breaker for me. 🌡️ The other criteria for purchasing is that I am quite happy with the brand and I have many Sonoff devices, including my gateway. My connection protocol is ZHA over Zigbee, and I expected a TRV from the same manufacturer of the gateway to work seamlessly, which it did. Not that I expected anything different as this is a Zigbee 3.0 device; I just wanted peace of mind. 🌡️ I used some long-life lithium batteries to run this. They are expensive, but I wanted to get the most out of this valve before needing to swap the batteries once more. I was quite happy with not having the batteries provided, as I think that this is a personal choice. I could have just installed a couple of generic batteries from the big box I purchased from my local supermarket, and that would have been no better than what would have been provided if the batteries were included. I opted for high-quality ones instead. 🌡️ Pairing was straight forward, and thankfully this is one of those Zigbee devices that seems to tolerate pairing in situ rather than close to the hub gateway. I did need to pair it twice, as the first time was successful, but the TRV was unavailable in Home Assistant. I paired again, and everything sprung to life. I will not be using the app or eWeLink as I have Home Assistant. There is some hype about interoperability with Google and Alexa, and I can indeed control this valve in that way, but that has nothing to do with the valve itself. Once you have the device paired with your hub, then you can connect up external services to do whatever you want, and I can indeed ask Alexa to change the temperature, but only because I have paid to make that happen and have leveraged the capabilities of my hub and network. Some Alexa devices can act as a Zigbee gateway and so could pair with this TRV, but I have not needed to test this as I have a more capable system already installed. 🌡️ I won’t go into the operation as this device uses the thermostat card, and it depends on the protocol and hub platform you are using. The TRV was very responsive to commands, although the only downside, which is common to all electric TRVs, is that you can hear the motor when the temperature demand changes. I am also not sure if I like that the valve lights up when it is dark in the room. Again, all similar TRVs do this, and I have not discovered if I can control this. I suppose I will just have to put up with it. On the whole, I am quite happy with it and the way that it functions. You will probably need to have other temperature sensors rather than rely on the one built into the TRV, which is next to the radiator. 🌡️ I do like that the valve has frost protection, but that’s only going to work if I have created automations to allow this TRV to demand heat in those situations. I mention this because the work to install this TRV is the tip of the iceberg when it comes to getting the most out of a TRV in home automation, and this is true of all such devices. Looking at the built-in temperature sensor in the TRV, it seems accurate enough against the ambient temperature in the room where it was installed. The TRV also has window detection, which simply detects a rapid drop in temperature. This is a feature that I won’t be using, as there are other reasons why this feature can be fooled, such as opening the door to the room where the TRV is located and letting in cold air. I prefer to put a separate sensor on the window and detect opening to switch off the TRV that way. 🌡️ I installed this device on a radiator in my daughter’s bedroom. I can automate the heating to keep the room cool when she is away at university and warmer when she returns home. This is the neat thing about TRVs like this: if you know what you are doing, you can get creative. This device lives up to that and is very easy to work with. Manual control is also easy, and you just turn the control on the top to set the temperature. I recommend putting it into child lock mode, as the control is very easy to turn. I am very happy with how the valve performs, and the control is quick and responsive. ✔️

### ⭐⭐⭐⭐⭐ ANOTHER GREAT PRODUCT FROM SONOFF
*by E***A on 21 March 2024*

I've been using SONOFF products for a number of years now and in operation they have proved themselves to be rugged and reliable in all sorts of applications. I chose their TRV ZB valves to enable me to have an individual heating zone for each radiator. To achieve this I use the Sonoff iHost for local control and various types of Sonoff Wi-Fi switches to call for heat from the boiler (switch the boiler on or off). In essence each TRV ZB acts as a 'Master' and has a 'Slave' Sonoff Wi-Fi Switch associated with it. When the TRV ZB goes to 'Heating' status it causes its associated slave switch to fire up the boiler. The switches that I use as 'Slaves' have clean volt free contacts model 4CH PRO. It will take some time with a simple thermometer to set up these TRV ZBs to give the desired room comfort temperature level. The effort is worth it though as since installing my system I have noticed much better comfort- not too hot or too cold and seen a reduction in my heating system gas consumption and of course once set up the operation is fully automatic. The TRV ZBs come with several valve adapters but I had a couple of valves (Myson) that adapters were not available for so those valves had to be changed to a type that will take the TRV ZB. The valves are battery (3x AA) operated and very quiet in operation. They are very controllable- I'm using the SONOFF iHost with standard firmware in every device. In using these devices I've identified features that I would find desirable in future developments for the product and Sonoff/ eWelink actually encourage and listen to feedback from customers via the eWelink forum. In summary this is a very competitvly priced smart TRV that will enable DIY ers without deep coding skills to build an automated central heating system.

## Frequently Bought Together

- 2 Pack SONOFF Zigbee Thermostatic Radiator Valve, TRVZB, Add-On Smart Radiator Valve For Smart Home Control, Easy Installation, Save Heating Costs, Works With Alexa, Google Home
- SONOFF Zigbee Bridge Pro Hub, WI-FI & Zigbee Dual-protocol Supporting, APP Control and Multi-device Management, Compatible with SONOFF Zigbee Devices
- 2 Pack SONOFF SNZB-02D Zigbee LCD Smart Temperature Humidity Sensor,for Remote Monitoring and Home Automation, Wireless Thermometer Hygrometer, Works with Alexa/Google Home, Battery Is Included

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-13*