Two radiator valves
Plan schedules for two suitable radiator locations.
SONOFF TRVZB Smart Radiator Valve 2-Pack
SONOFF TRVZB Smart Radiator Valve 2-Pack
Regular price
£54.99 GBP
Regular price
£94.99 GBP
Sale price
£54.99 GBP
Taxes included.
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Full product specification
A pair of SONOFF TRVZB Zigbee smart radiator valves for room-by-room temperature control and heating schedules.
Radiator-valve compatibility & setup
| Model | SONOFF TRVZB |
|---|---|
| Connection | M30 × 1.5 mm. Other valve types may need a compatible adapter; check the official adapter guide. |
| Power | 3 × 1.5V LR6 alkaline AA batteries per valve. Batteries are not included. |
| Connectivity | Zigbee 3.0. A compatible Zigbee gateway is required for connected control; this is not a direct WiFi device. |
| Size | 59.4 × 59.4 × 95 mm; check available space around your radiator valve. |
| Pack contents | Two TRVZB valve heads. Gateway not included. |
Check your existing valve before ordering
The smart head replaces a compatible thermostatic radiator-valve head. Check the valve body, thread and any required adapter; a photo of the old head alone may not identify the connection. Do not remove the plumbed valve body or loosen pipework.
Open SONOFF’s illustrated valve-adapter selection guide · Download the valve compatibility chart (PDF)
Installation, calibration and pairing
- Check the correct adapter and install fresh batteries according to the manual.
- Follow the manufacturer’s mounting and initial calibration sequence before pairing.
- Add the valve through your compatible Zigbee gateway. App and voice-control functions depend on the gateway.
Open the official SONOFF TRVZB manual with installation and display diagrams (PDF).
A radiator head controls flow through its radiator; it does not by itself replace boiler controls. Ask an installer if you are unsure about your valve type.
Results depend on your home, existing heating or glazing, fitting and use. No fixed energy-bill saving is guaranteed.
Delivery & sizing help
Free UK shipping. Delivery typically takes 5–10 working days after dispatch. Ask us about suitability before ordering, or read our delivery information and returns process.
TWO-ROOM SMART CONTROL
Give two suitable radiators their own routine.
This two-pack includes two SONOFF TRVZB Zigbee smart radiator valves for compatible radiator connections.
Check the details
SONOFF TRVZB Smart Radiator Valve 2-Pack
WHY THIS PRODUCT
What the two-pack offers
Zigbee connection
Connected functions require a compatible gateway.
Room-by-room control
Adjust suitable radiators around daily use.
CHECK BEFORE BUYING
Check both radiator connections.
The gateway is not included unless expressly listed as an option.
- Check the valve connection and adapter requirements on each radiator.
- Confirm a compatible Zigbee gateway and app are available.
- Review the two-pack contents and fitting instructions.
Is a Zigbee gateway included?
No gateway is included unless it is expressly shown as an option. A compatible gateway is needed for connected functions.
Will these work on every radiator?
Compatibility depends on each radiator valve connection and any required adapter. Check both before ordering.
Will it reduce my energy bills?
It may help you use heat more effectively or reduce wasted warmth, depending on the product and your home. Results vary with your heating system, windows, installation and usage. No fixed saving is guaranteed.
Free UK deliveryTypically 5–10 working days from dispatchUK supportMon–Fri, 9am–5pm UK timeReturns informationRead your rights and our process