--- 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: "€ 102.70" currency: EUR in_stock: true reviews_count: 11 category: "Sonoff" url: https://www.desertcart.hr/products/584053216-2-pack-sonoff-zigbee-thermostatic-radiator-valve-trvzb-add-on store_origin: HR region: Croatia --- # 6 months heating data history Zigbee 3.0 connectivity Battery powered (3x AA) 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:** € 102.70 **Availability:** ✅ In Stock ## Summary > 🔥 Stay cozy, save smart — control your comfort with a tap! 📲 ## 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?** € 102.70 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/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 - • **Energy-Saving Automation:** Auto shut-off during ventilation plus detailed consumption stats to slash heating bills. - • **Seamless Zigbee Integration:** Effortlessly sync with Alexa, Google Home & Home Assistant for smart heating control. - • **Precision Temperature Control:** Valve opening from 0% to 100% with 1% accuracy ensures perfect room comfort. - • **Universal Valve Compatibility:** Fits most M30 x 1.5mm radiator valves with included adapters for easy DIY upgrades. - • **Smart Scheduling & Voice Control:** Set custom heating schedules and control remotely via eWeLink app or voice commands. ## Overview The 2 Pack SONOFF Zigbee Thermostatic Radiator Valves (TRVZB) are smart, battery-powered devices designed to upgrade your home heating system. Featuring Zigbee 3.0 connectivity, they integrate seamlessly with Alexa, Google Home, and Home Assistant for remote and voice control. With precise valve opening control, energy-saving automation, and compatibility with most radiator valves, these valves offer an easy DIY solution to optimize comfort and reduce heating costs. The included eWeLink app enables scheduling, group control, and access to 6 months of heating consumption data, making your home smarter and more efficient. ## Description Shop 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. Free delivery on eligible orders of £20 or more. Review: ANOTHER GREAT PRODUCT FROM SONOFF - 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. Review: Highly recommend these. Great functionality for a great price! - I now have these on every radiator in the house, all accessible through the eWeLink app and integrated with Alexa. They really are excellent, they come with a full set of adaptors to match existing TRV bodies, easy setup and nice clear digital display. I read negative comments about the temperature reading that the TRVs give. I think it is unavoidable that a temperature sensor located right next to the radiator is going to be inaccurate. I bought a handful of Sonoff temp/humidity sensors and have one in each room. I then use the eWeLink app and Alexa to control the TRVs based on the reading given by the Sonoffs rather than the TRV temp sensors. Compared to other systems, these are a great price for the quality, and they are often on an desertcart sale offer. ## 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 | | Backlight | Yes | | Best Sellers Rank | 5,839 in DIY & Tools ( See Top 100 in DIY & Tools ) 36 in Central Heating System Accessories | | Brand Name | SONOFF | | Colour | White | | Connectivity Protocol | ZigBee | | Connectivity Technology | Zigbee | | Control Method | App | | Control Type | Remote Control | | Controller Type | Amazon Alexa, Google Assistant, IFTTT, Push Button | | Country Of Origin | China | | Customer Reviews | 4.3 4.3 out of 5 stars (475) | | Display Type | LED | | Global Trade Identification Number | 06920075743487 | | Included Components | Manual | | Item Shape | Rectangular Prism | | Item Type Name | 1 | | Item Weight | 154 Grams | | Manufacturer | SONOFF | | Material Type | PC V0 | | Model Name | TRVZB | | Model Number | TRVZB | | Mounting Type | Wall Mount | | Power Source | Battery Powered | | Product Style | Modern | | Special Features | Frost Protection | | Specific Uses For Product | Heat Pump | | Specification Met | CE | | Temperature Control Type | Heating | | Voltage | 4.5 Volts | ## 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 ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ Highly recommend these. Great functionality for a great price! *by E***S on 23 February 2025* I now have these on every radiator in the house, all accessible through the eWeLink app and integrated with Alexa. They really are excellent, they come with a full set of adaptors to match existing TRV bodies, easy setup and nice clear digital display. I read negative comments about the temperature reading that the TRVs give. I think it is unavoidable that a temperature sensor located right next to the radiator is going to be inaccurate. I bought a handful of Sonoff temp/humidity sensors and have one in each room. I then use the eWeLink app and Alexa to control the TRVs based on the reading given by the Sonoffs rather than the TRV temp sensors. Compared to other systems, these are a great price for the quality, and they are often on an Amazon sale offer. ### ⭐⭐⭐⭐ The product is awesome *by K***A on 11 March 2025* The product is awesome and works perfectly, but there’s one downside—there’s no way to directly connect an external temperature sensor. Because of this, I’m giving it 4 stars. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/584053216-2-pack-sonoff-zigbee-thermostatic-radiator-valve-trvzb-add-on](https://www.desertcart.hr/products/584053216-2-pack-sonoff-zigbee-thermostatic-radiator-valve-trvzb-add-on) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-17*