Sonoff Zigbee Thermostatic Radiator Valve

by Sonoff

Control the temperature in any room with this smart radiator valve.

Upgrade your heating system with the Sonoff Zigbee Smart Radiator Valve, designed to deliver intelligent control, energy savings, and unparalleled convenience to your home. Seamlessly integrated with your smart home system, it’s the ultimate companion for efficient and comfortable home heating.

To use Zigbee devices, you’ll need a Zigbee-compatible USB dongle connected to an always-on computer (a Raspberry Pi works perfectly!) or a dedicated smart home solution such as the excellent Home Assistant Green (with Zigbee dongle) or the Sonoff iHost.

Why We Love It

Simplify your home heating with smarter controls, save energy, and enjoy a perfectly cosy home all year round with the Sonoff Zigbee Smart Radiator Valve.

  • On-Board Display: Easily view the target temperature, connection status, and other key details at a glance.
  • Reduce Costs: Combine with temperature and human presence sensors to avoid heating unoccupied spaces, saving energy and money.
  • Fine-Tuned Value Adjustment: Achieve precise room temperatures with adjustments from 0% to 100% in 1% increments.
  • Widely Compatible: Fits most ‘M30 x 1.5mm’ radiator valves and includes adapters for a variety of systems.
  • Works great with Home Assistant: Our favourite open-source smart home software! Check out our beginner friendly Learn guide for set up instructions.

Stay warm, save money, and live smarter! 🌡️✨

Tech Specs

  • Connectivity: Zigbee 3.0
  • Compatibility: Includes valve adapters for most radiator types
  • Power: 3 x 1.5V AA batteries (not included)
  • Threaded Mount: M30 x 1.5mm
  • Dimensions: 59.4×59.4×95 mm
  • Weight: 154g

Resources

Note that you need to install the valve on the radiator before attempting to pair it - installation steps can be found in the User Manual.

What Is Zigbee?

Zigbee is a wireless standard enabling low-power, secure connections between smart devices. Widely used in home automation for devices such as thermostats, sensors, and locks, its energy efficiency allows some devices to operate for years on a single coin cell battery.

One of Zigbee’s greatest advantages is its local nature – no need for cloud subscriptions or even an internet connection. Everything can remain within your home, ensuring high security and resilience against internet outages.

Top brands like IKEA, Philips Hue, Tuya, and Sonoff offer Zigbee-supported devices. This allows you to combine products from various manufacturers into one smart home setup, ensuring you’re not locked into a single vendor – brilliant!

With an indoor range of 10–100 metres and extended outdoor coverage, Zigbee’s mesh networking ensures reliable communication, even if some devices go offline. Its robust security features, including encryption and key protection, safeguard your smart home and keep it under your control.

Learn more about Zigbee on the official Zigbee website.

2 customer reviews

25 days ago
Bought this to experiment with Home Assistant on pi5 installed by Rpi-imager, with a ZBT-1 Good news all installed 1st time - NO APP required. Only slight snag was that I wasn't reading the TRV docs literally enough. They are somewhat cryptic. The valve HAS to be on a radiator to pair as it tries to see if it is fitted before it will do anything else. Perhaps the pimoroni web page could mention these points for potential customers?
by Anonymous about Sonoff Zigbee Thermostatic Radiator Valve via REVIEWS.io
2 months ago
This is a solidly and well-made TRV, it certain doesn't look or feel cheap. It's excellent value for money when compared with other smart TRVs on the market (some of which retail for more than double the cost of this one). Pairing with the Zigbee controller to get it onto my HA instance (via the Sonoff Zigbee USB dongle in my case) was very straightforward. I've had no trouble with it since: it seems to stay connected and just works. The downside is the temperature sensor: as soon as the radiator starts to get warm, the temperature it reports rapidly shoots up to far in excess of the actual room temperature. This isn't something that can be fixed by calibration; perhaps a future firmware update will address it? Either way, you'll want a separate temperature sensor in the same room as your TRV so you can trigger the TRV's behaviour using that. I've not done that yet, but it should be easily achieved in HA.
by Paul about Sonoff Zigbee Thermostatic Radiator Valve via REVIEWS.io

1 user photo