SONOFF TRVZB smart radiator thermostat, Zigbee 3.0, white
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Choose countryThe SONOFF TRVZB is a smart thermostatic radiator valve for adjusting room temperature over a Zigbee network. It fits standard radiator valves with an M30 x 1.5 mm thread, while the included adapters extend fitting options.
Temperature control and heating schedules
Set a temperature from 4 to +35 °C using the rotary knob or remotely through the eWeLink app. Voice control with Amazon Alexa and Google Assistant and integration with Home Assistant are supported. Heating schedules and different heating modes let you adapt heating to your routine and set individual temperatures for each room.
- LED indication: shows the target temperature, heating status, internet connection and low batteries.
- Open-window detection: automatically turns off radiator heating.
- Protection functions: a child lock restricts unwanted operation, while frost protection helps prevent pipes from freezing.
- Data history: view historical data for 6 months.
Power and integration
The thermostat runs on 3 AA 1.5 V alkaline batteries, with a battery life of up to 12 months. It supports the listed SONOFF controllers and several third-party Zigbee hubs. It can also be combined with temperature or humidity sensors in smart home scenarios.
| Compatible SONOFF controllers | Sonoff iHost, NSPanel Pro, ZB Bridge Pro, ZBDongle-P, ZBDongle-E |
|---|---|
| Wireless connectivity | Zigbee 3.0, IEEE802.15.4 |
| Temperature setting range | 4 °C to +35 °C |
| Thread | M30 x 1.5 mm |
| Power supply | 4.5 V; 3 x 1.5 V LR6 AA alkaline batteries |
| Antenna | Integrated PCB antenna |
| Microcontroller | EFR32MG22 |
| App | eWeLink (Android, iOS) |
| Smart home platforms | Amazon Alexa, Google Assistant, Home Assistant |
| Operating temperature | -10 °C to +50 °C |
| Operating humidity | 5–95 % RH, non-condensing |
| Body material | PC plastic |
| Dimensions | 59.4 x 59.4 x 95 mm |
| Weight | 157 g |
| Colour | White |
| Certificates | CE, RoHS |
| Battery life | Up to 12 months |
| Other compatible hubs | Aeotec SmartThings Hub (V3), Echo Show 2nd, Echo 4th Gen, Echo plus 2nd |
| EAN | 6920075740950 |
|---|
Which radiator valves does it fit?
It fits standard radiator valves with an M30 x 1.5 mm thread. Valve adapters compatible with most radiator types are included; the source does not list the specific adapter types.
Can I adjust the temperature without the app?
Yes. The rotary knob lets you change the temperature and other settings manually. LED indication shows the target temperature and heating status.
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