NodOn Zigbee Thermostatic Radiator Valve
Last updated October 2026

NodOn Zigbee Thermostatic Radiator Valve

A Zigbee 3.0 valve head with Danfoss adapters, open-window detection and a key lock, made for homes that already run a Zigbee coordinator.

€74.10

Last recorded price

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Launch Year: 2024

Model: TRV-4-1-00

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Our review

NodOn Zigbee Thermostatic Radiator Valve Review: A Local-First TRV With No App or Subscription

The verdict

The NodOn Zigbee Thermostatic Radiator Valve (TRV-4-1-00) replaces a manual radiator head with a Zigbee 3.0 one that takes its orders from whatever coordinator you already run, with no NodOn app and no subscription. It covers the essentials well: an 8-28 degrees Celsius control range on the standard M30 x 1.5 mm thread, Danfoss RA, RAV and RAVL adapters in the box, open-window detection, a key lock, Boost and Off modes, over-the-air updates and Home Assistant support through Zigbee2MQTT or ZHA. The trade-off is that it is a plain end device: without a Zigbee coordinator it does nothing, it has no Matter or Apple Home path, and it does no schedule learning of its own, so the routines have to come from your hub. At the budget end of the category it is a sensible per-room pick for a home that is already on Zigbee.

Best for
  • Zigbee and Home Assistant homes
  • Room-by-room heating control
  • No-subscription, local control
  • Radiators with Danfoss fittings

Pros

  • Certified Zigbee 3.0 (2.4 GHz, +8 dBm) with no app, account or subscription
  • Works with Home Assistant through Zigbee2MQTT or ZHA, and with Alexa
  • Standard M30 x 1.5 mm thread with Danfoss RA, RAV and RAVL adapters included
  • Open-window detection, a key lock, and Boost and Off modes on the device
  • Built-in temperature sensor with a calibration offset, exposed to the hub
  • Over-the-air firmware updates through the coordinator
  • Two year warranty

Cons

  • Needs a Zigbee coordinator; it has no Wi-Fi or Bluetooth and does not work alone
  • No Matter and no Apple Home path
  • No schedule learning or AI suggestions, the routines live in your hub
  • No external temperature sensor
  • The LED matrix is limited next to pricier colour screens
  • Runs on two AA batteries, rated for around two years

Who is the NodOn Zigbee Thermostatic Radiator Valve for?

This valve suits a home that already runs a Zigbee coordinator, whether that is a Home Assistant stick on ZHA or Zigbee2MQTT, an Amazon Echo with a Zigbee radio, or one of the other gateways NodOn lists. It replaces the manual head on a radiator with the standard M30 x 1.5 mm thread and turns that radiator into its own heating zone, so each room follows its own setpoint instead of one thermostat deciding for the whole house. The three Danfoss adapters in the box (RA, RAV and RAVL) cover most European and UK fittings, and the valve must be paired to the network and calibrated once before it goes on the radiator.

What the valve offers

The basics are well covered. The head speaks Zigbee 3.0 at 2.4 GHz with a maximum radio power of +8 dBm and a 30 metre indoor range, it measures room temperature itself and exposes that reading to the hub, and it carries a local temperature calibration offset for the case where the radiator air reads warmer than the room. On the device there is a key lock that disables the buttons, open-window detection so the valve closes when a window is left open, Boost, Off and frost-protection modes reachable from the buttons, a weekly valve cycle that limits lime and scale, and over-the-air updates through the coordinator. Power comes from two AA/LR6 cells, rated for about two years, and NodOn backs the head with a two year warranty.

What to know before you buy

This is a Zigbee end device, so it does nothing on its own: it has no Wi-Fi, no Bluetooth and no app, and it needs a coordinator or gateway hosting a Zigbee network before it can be controlled. It is also a plain valve rather than a smart thermostat platform. There is no Matter radio and no Apple Home path, no schedule learning and no AI suggestions, so weekly programs and geofencing have to be built as automations in your hub from the entities the valve exposes. It does not support an external temperature sensor or geofencing, the display is an LED matrix rather than a colour screen, and frost protection is a built-in mode.

Is the NodOn Zigbee Thermostatic Radiator Valve worth it?

For a Zigbee household it is good value. You get a certified Zigbee 3.0 valve with the standard thread and the three Danfoss adapters included, open-window detection, a key lock, Boost and Off modes, OTA updates and clean Home Assistant support through Zigbee2MQTT or ZHA, all with no proprietary app and no ongoing fee. What you give up against a flagship valve is polish and autonomy: an LED matrix instead of a colour screen, no learning, no Matter or Apple Home, and a hub in the chain for every routine. If you already run a Zigbee network and want per-room control on a budget, this is a solid choice; if you want a self-contained thermostat with its own app, look elsewhere.

Frequently asked questions

Does the NodOn Zigbee Thermostatic Radiator Valve need a hub?

Yes. It is a Zigbee 3.0 end device with no Wi-Fi or Bluetooth, so it joins an existing Zigbee network and needs a compatible coordinator or gateway. NodOn lists Home Assistant, Jeedom, Zigbee2MQTT, WiziNote, Energeasy Connect, Otodo, Alexa and Edalso for this model.

Does it work with Home Assistant?

Yes. Zigbee2MQTT publishes a device page for the TRV-4-1-00, exposing child lock, climate, battery, valve position and the display controls, and the valve also pairs through ZHA as a climate entity with battery, heating-demand and setpoint-limit entities.

Will it fit my radiator?

It mounts on the standard M30 x 1.5 mm valve thread, and Danfoss RA, RAV and RAVL adapters are supplied in the box. When using the Danfoss RAV adapter, the RAV pin has to be inserted on the valve piston.

Does it need an app or a subscription?

No. There is no NodOn app and no ongoing fee: the valve is controlled from your Zigbee coordinator, and scheduling and other routines are built as automations in that platform.

Does it work with Apple Home or Matter?

No. The radio is Zigbee 3.0 only, with no Matter certification and no Apple Home path. Alexa is supported, along with Home Assistant through Zigbee2MQTT or ZHA. Samsung SmartThings is not.

How long do the batteries last?

NodOn rates the two AA/LR6 cells at a two year lifespan. The valve must be recalibrated each time the batteries are replaced, and rechargeable cells are not recommended.

At a glance

Summary

Everything this radiator valve supports, grouped by category.

Size & Materials
2.4 × 2.7 × 3.3 in 62 × 68 × 83 mm8.1 oz 230 g
Connectivity
Zigbee (Zigbee Hub required)
Integrations
AlexaHome Assistant
Display
LED matrix
Sensors
Temperature
Scheduling
Manually
Features
Frost ProtectionChild LockDisplay Temperature

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Company
NodOn logo

NodOn

4.4/ 5 avg ratingFrance flagHeadquartered in France

NodOn is a French manufacturer of Zigbee and EnOcean sensors and actuators for smart homes and buildings, part of the Altyor group and focused on energy efficiency, metering and battery-free devices. Its Zigbee range covers relays, energy monitors, radiator valves, temperature and door sensors and an air-conditioner infrared controller, all Zigbee 3.0 certified. The devices work with Amazon Alexa, SmartThings, Home Assistant, Homey, Jeedom and Zigbee2MQTT gateways.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Dimensions

2.4 × 2.7 × 3.3 in 62 × 68 × 83 mm

Weight

8.1 oz 230 g

Power
Battery Type

2x AA

Two 1.5 V AA/LR6 cells power the valve, supplied in the box; NodOn advises against rechargeable batteries.

Battery Life

2 years

The NodOn user guide states a battery lifespan of 2 years, and the valve must be recalibrated whenever the cells are replaced.

Connectivity
2.4 GHz WiFi

NO

The 2.4 GHz radio is Zigbee (IEEE 802.15.4), not Wi-Fi.

5 GHz WiFi

NO

Bluetooth

NO

Z-Wave

NO

Zigbee

Zigbee Hub required

Zigbee 3.0 end device at 2.4 GHz with a maximum radio power of +8 dBm, so it joins an existing Zigbee network and needs a compatible coordinator or gateway.

NodOn lists Home Assistant, Jeedom, Zigbee2MQTT, WiziNote, Energeasy Connect, Otodo, Alexa and Edalso as compatible gateways for this model.

Battery-powered, so it is an end device only and not a Zigbee router.

Thread Protocol

NO

Integrations
Google Home

NO

Not compatible with Google Home.

Alexa

YES

NodOn lists Alexa among the compatible gateways for this model, and its Zigbee range is documented as working with Amazon Alexa gateways.

Apple HomeKit

NO

Not compatible with Apple Home.

Samsung SmartThings

NO

Not compatible with Samsung SmartThings.

Home Assistant

YES

Zigbee2MQTT publishes a device page for this exact model, the TRV-4-1-00, exposing child lock, climate, battery, valve position and the display controls.

A technical review tested the valve on Home Assistant and reports it pairs cleanly through ZHA as well, as a climate entity with battery, heating-demand and setpoint-limit entities.

NodOn also lists Home Assistant among the compatible gateways for this model.

Matter

NO

The radio is Zigbee 3.0 only, with no Matter certification or Matter path documented for this model.

Display
Screen

YES

An LED matrix shows the temperature value plus the radio, pairing, calibration, key-lock, Boost, Off, low-battery and error indicators.

Screen Type

LED matrix

Sensors
Temperature

YES

The valve measures room temperature itself and exposes it to the gateway as local_temperature, with a local temperature calibration offset.

The user guide notes a temperature offset setting and a calibration run after installation and after every battery change.

Humidity

NO

The datasheet states an operating humidity of 0-90% rH, not a humidity sensor.

Scheduling
Manually

YES

NodOn documents programming of heating time slots and creation of automated scenarios through a compatible Zigbee gateway, and the setpoint can also be changed on the device between 8 and 28 degrees Celsius.

Automatically

NO

There is no learning or adaptive scheduling on the valve: any automatic behaviour is built in the gateway from the exposed sensor and setpoint entities.

Suggestions

NO

Features
External Temperature Sensors

NO

No external temperature sensor.

Geofencing

NO

No geofencing. Any location automation has to be built in the gateway.

Frost Protection

YES

Frost protection mode is supported.

Child Lock

YES

A key lock disables the buttons on the device so the temperature cannot be changed by hand, and Zigbee2MQTT exposes it as child_lock.

Display Temperature

YES

The display shows the temperature value and the heating state on the device, and the measured room temperature is exposed to the gateway as local_temperature.

Automations

YES

NodOn documents automated scenarios based on lifestyle habits and automatic shut-off when a window is open, driven from the compatible gateway or home automation system.

The valve cycles itself once a week to limit lime and scale.

Required to work

You need a Zigbee hub for this

View all
Why it needs a Zigbee coordinator

The NodOn Zigbee Thermostatic Radiator Valve speaks Zigbee, not Wi-Fi. On its own it cannot reach your phone, your voice assistant or any automation: it needs a Zigbee coordinator to join. These are the ones in our catalog that can run it.

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