The Smart Device Compare comparison

Shelly BLU TRV vs Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Shelly BLU TRV and Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

A summary of selected recorded differences between these radiator valves. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Child Lock (features): Shelly BLU TRV — No; Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve — Yes (Child lock disables the knob so the valve can only be changed from the app.).
Frost Protection (features): Shelly BLU TRV — No; Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve — Yes (Anti-freeze mode holds a minimum safeguard temperature to protect pipes and the heating system in cold weather, and its threshold is adjustable.).

Specifications to check side by side

2.4 GHz Wi-Fi (connectivity): Shelly BLU TRV — Gateway required; Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve — No.
Zigbee (connectivity): Shelly BLU TRV — No; Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve — Zigbee Hub required (Zigbee 3.0 end device (IEEE 802.15.4). SONOFF lists ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost and its ZBDongle coordinators as compatible hubs.).
Apple Home (integrations): Shelly BLU TRV — No; Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve — SONOFF Hub required (The product page states Works with Apple Home via Matter Bridge: the valve reaches the Home app when its Zigbee hub republishes it over Matter (Bridge-M, ZBBridge-U, iHost, NSPanel Pro or eWeLink CUBE). Apple Home has no Zigbee radio of its own.).
Matter (integrations): Shelly BLU TRV — No; Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve — SONOFF Hub required (The valve is not a Matter device itself: it is Zigbee, and SONOFF publishes it into Matter through one of its bridges (Bridge-M, ZBBridge-U, iHost, NSPanel Pro or eWeLink CUBE running on a Raspberry Pi, a virtual machine or a NAS with a SONOFF Zigbee dongle).).

Information still to confirm

2 of 27 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Shelly

Shelly BLU TRV

Last updated October 2026

View full device profile

Option 2 · Sonoff

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

7differences with recorded values for every device

2rows with missing or unspecified information

Consider your setup

Apple Home

Shelly BLU TRVNo
Sonoff TRV Gen2 Zigbee Thermostatic Radiator ValveSONOFF Hub required

Confirm which features appear in Apple Home and whether extra hardware or a subscription is needed for your intended use.

Inspect the specifications

Consider your setup

Matter

Shelly BLU TRVNo
Sonoff TRV Gen2 Zigbee Thermostatic Radiator ValveSONOFF Hub required

Confirm the exact device type and the features exposed in your chosen platform. Protocol support does not establish feature parity across apps.

Inspect the specifications

Consider your setup

Battery Life

Shelly BLU TRV2 years
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve6 months

Compare the stated test conditions. Catalog battery figures alone do not predict runtime in your home.

Inspect the specifications

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 27 of 27 rows. “Not recorded” does not mean “No”.

Reading layout

Connectivity

2.4 GHz Wi-Fi

Shelly BLU TRV: Gateway required
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: No

5 GHz Wi-Fi

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: No

Bluetooth

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
The official spec sheet lists connectivity as Zigbee 3.0 / BLE. Bluetooth is used to pair the valve with the eWeLink app when the device is already joined to a third-party Zigbee platform, and the app home screen carries a BLE icon that switches the radio.

Thread

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: No
Catalog note
The Thread Connection line in the SONOFF spec table is the M30 x 1.5 mm valve thread, not the Thread protocol.

Z Wave

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: No

Zigbee

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Zigbee Hub required
Catalog note
Zigbee 3.0 end device (IEEE 802.15.4). SONOFF lists ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost and its ZBDongle coordinators as compatible hubs.

Display

Screen

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
High-definition IPS colour screen showing status, current temperature and settings, with 4-way rotation so it stays upright whichever way the valve is mounted.

Screen Type

Shelly BLU TRV

Not recorded

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

IPS

Manufacturer source

The valve uses an IPS screen.

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve manufacturer product page →

Source section: Product feature description
Model: Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

Sensor compatibility and available controls depend on the Zigbee hub.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Features

Automations

Shelly BLU TRV: Not recorded
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
Smart Scene triggers on open-window detection, device status or the current temperature, and can switch the valve to Auto, Anti-freeze, Manual or Boost or set a temperature between 5 and 30 degrees Celsius.

Child Lock

Shelly BLU TRV

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

Yes

Manufacturer source

A child lock is included.

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve manufacturer product page →

Source section: Product feature description
Model: Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

Sensor compatibility and available controls depend on the Zigbee hub.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Child lock disables the knob so the valve can only be changed from the app.

Display Temperature

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
The IPS screen shows the current temperature alongside the target temperature and the heating status.

External Temperature Sensors

Shelly BLU TRV

Yes

Catalog note

External sensor support (compatible with Shelly BLU H&T, Shelly BLU Door/Window sensors, associated via BLU Gateway Gen3)

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

Yes

Manufacturer source

A compatible remote temperature sensor can guide heating control.

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve manufacturer product page →

Source section: Product feature description
Model: Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

Sensor compatibility and available controls depend on the Zigbee hub.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Temp. Display from External Sensor lets the valve use another SONOFF sensor on the same eWeLink account as its control reference: SNZB-02, SNZB-02P, SNZB-02D, SNZB-02WD, SNZB-02LD, SNZB-02B and SNZB-02M.

Frost Protection

Shelly BLU TRV

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

Yes

Manufacturer source

Frost protection is listed.

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve manufacturer product page →

Source section: Product feature description
Model: Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

Sensor compatibility and available controls depend on the Zigbee hub.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Anti-freeze mode holds a minimum safeguard temperature to protect pipes and the heating system in cold weather, and its threshold is adjustable.

Geofencing

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: No

Integrations

Alexa

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
SONOFF documents Alexa under Third-party Platforms for this model, with working mode and temperature control. Its hub list also covers direct pairing to the Zigbee radio of the Echo Show 2nd Gen, Echo Plus 2nd Gen and Echo 4th Gen.

Apple Home

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: SONOFF Hub required
Catalog note
The product page states Works with Apple Home via Matter Bridge: the valve reaches the Home app when its Zigbee hub republishes it over Matter (Bridge-M, ZBBridge-U, iHost, NSPanel Pro or eWeLink CUBE). Apple Home has no Zigbee radio of its own.

Google Home

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
SONOFF documents Google Home under Third-party Platforms for this model, with working mode and temperature control, through the eWeLink account or a SONOFF Matter bridge.

Home Assistant

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
Zigbee2MQTT has a device page for the TRV-ZBT and SONOFF asks for Zigbee2MQTT 2.12.1 or later for full feature support. For ZHA, SONOFF publishes a quirk script while its pull request is pending, so some entities need that script until it is merged.

Matter

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: SONOFF Hub required
Catalog note
The valve is not a Matter device itself: it is Zigbee, and SONOFF publishes it into Matter through one of its bridges (Bridge-M, ZBBridge-U, iHost, NSPanel Pro or eWeLink CUBE running on a Raspberry Pi, a virtual machine or a NAS with a SONOFF Zigbee dongle).

SmartThings

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
SONOFF documents SmartThings under Third-party Platforms for this model and publishes a SmartThings driver invite for it; a Zigbee hub such as the Aeotec SmartThings Hub v3 pairs the valve directly.

Power

Battery Life

Shelly BLU TRV: 2 years
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: 6 months
Catalog note
SONOFF states two 2,000 mAh AA alkaline batteries last up to six months under normal use, and that valve adjustment frequency, ambient temperature and network stability shorten it.

Battery Type

Shelly BLU TRV: 2x AA
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: 2x AA

Scheduling

Automatically

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: No

Manually

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
Three switchable schedule plans, each covering all seven days of the week with up to 12 time slots per day, plus Manual and Anti-freeze operating modes and a Boost timer.

Suggestions

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: No

Sensors

Humidity

Shelly BLU TRV: No
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: No

Temperature

Shelly BLU TRV: Yes
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve: Yes
Catalog note
The valve measures room temperature itself and shows it on the display, with a temperature offset setting to calibrate the reading.

Specifications for Shelly BLU TRV versus Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Specification	Shelly BLU TRV	Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Connectivity
2.4 GHz Wi-Fi	Gateway required	No
5 GHz Wi-Fi	No	No
Bluetooth	Yes	Yes Catalog note The official spec sheet lists connectivity as Zigbee 3.0 / BLE. Bluetooth is used to pair the valve with the eWeLink app when the device is already joined to a third-party Zigbee platform, and the app home screen carries a BLE icon that switches the radio.
Thread	No	No Catalog note The Thread Connection line in the SONOFF spec table is the M30 x 1.5 mm valve thread, not the Thread protocol.
Z Wave	No	No
Zigbee	No	Zigbee Hub required Catalog note Zigbee 3.0 end device (IEEE 802.15.4). SONOFF lists ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost and its ZBDongle coordinators as compatible hubs.
Display
Screen	Yes	Yes Catalog note High-definition IPS colour screen showing status, current temperature and settings, with 4-way rotation so it stays upright whichever way the valve is mounted.
Screen Type	Not recorded	IPS Manufacturer source The valve uses an IPS screen. Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve manufacturer product page → Source section Product feature description Model Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 Sensor compatibility and available controls depend on the Zigbee hub. Document check only; not a hands-on test or verification of every regional or firmware variant.
Features
Automations	Not recorded	Yes Catalog note Smart Scene triggers on open-window detection, device status or the current temperature, and can switch the valve to Auto, Anti-freeze, Manual or Boost or set a temperature between 5 and 30 degrees Celsius.
Child Lock	No	Yes Manufacturer source A child lock is included. Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve manufacturer product page → Source section Product feature description Model Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 Sensor compatibility and available controls depend on the Zigbee hub. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Child lock disables the knob so the valve can only be changed from the app.
Display Temperature	Yes	Yes Catalog note The IPS screen shows the current temperature alongside the target temperature and the heating status.
External Temperature Sensors	Yes Catalog note External sensor support (compatible with Shelly BLU H&T, Shelly BLU Door/Window sensors, associated via BLU Gateway Gen3)	Yes Manufacturer source A compatible remote temperature sensor can guide heating control. Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve manufacturer product page → Source section Product feature description Model Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 Sensor compatibility and available controls depend on the Zigbee hub. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Temp. Display from External Sensor lets the valve use another SONOFF sensor on the same eWeLink account as its control reference: SNZB-02, SNZB-02P, SNZB-02D, SNZB-02WD, SNZB-02LD, SNZB-02B and SNZB-02M.
Frost Protection	No	Yes Manufacturer source Frost protection is listed. Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve manufacturer product page → Source section Product feature description Model Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 Sensor compatibility and available controls depend on the Zigbee hub. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Anti-freeze mode holds a minimum safeguard temperature to protect pipes and the heating system in cold weather, and its threshold is adjustable.
Geofencing	No	No
Integrations
Alexa	Yes	Yes Catalog note SONOFF documents Alexa under Third-party Platforms for this model, with working mode and temperature control. Its hub list also covers direct pairing to the Zigbee radio of the Echo Show 2nd Gen, Echo Plus 2nd Gen and Echo 4th Gen.
Apple Home	No	SONOFF Hub required Catalog note The product page states Works with Apple Home via Matter Bridge: the valve reaches the Home app when its Zigbee hub republishes it over Matter (Bridge-M, ZBBridge-U, iHost, NSPanel Pro or eWeLink CUBE). Apple Home has no Zigbee radio of its own.
Google Home	Yes	Yes Catalog note SONOFF documents Google Home under Third-party Platforms for this model, with working mode and temperature control, through the eWeLink account or a SONOFF Matter bridge.
Home Assistant	Yes	Yes Catalog note Zigbee2MQTT has a device page for the TRV-ZBT and SONOFF asks for Zigbee2MQTT 2.12.1 or later for full feature support. For ZHA, SONOFF publishes a quirk script while its pull request is pending, so some entities need that script until it is merged.
Matter	No	SONOFF Hub required Catalog note The valve is not a Matter device itself: it is Zigbee, and SONOFF publishes it into Matter through one of its bridges (Bridge-M, ZBBridge-U, iHost, NSPanel Pro or eWeLink CUBE running on a Raspberry Pi, a virtual machine or a NAS with a SONOFF Zigbee dongle).
SmartThings	Yes	Yes Catalog note SONOFF documents SmartThings under Third-party Platforms for this model and publishes a SmartThings driver invite for it; a Zigbee hub such as the Aeotec SmartThings Hub v3 pairs the valve directly.
Power
Battery Life	2 years	6 months Catalog note SONOFF states two 2,000 mAh AA alkaline batteries last up to six months under normal use, and that valve adjustment frequency, ambient temperature and network stability shorten it.
Battery Type	2x AA	2x AA
Scheduling
Automatically	No	No
Manually	Yes	Yes Catalog note Three switchable schedule plans, each covering all seven days of the week with up to 12 time slots per day, plus Manual and Anti-freeze operating modes and a Boost timer.
Suggestions	No	No
Sensors
Humidity	No	No
Temperature	Yes	Yes Catalog note The valve measures room temperature itself and shows it on the display, with a temperature offset setting to calibrate the reading.

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology