Legrand and Netatmo Matter devices: certified products and setup

By Rowan Hale, editor (pen name) · Reviewed 2026-10-28

By Rowan Hale, editor (pen name) · Reviewed 2026-10-27

Legrand’s Matter-certified devices are the radiant Smart Lighting with Wi-Fi (2nd Gen) family—the WWMRL10WH switch, WWMRL51WH dimmer, WWMRR15WH receptacle, WWMP10 indoor plug and WWMP31 outdoor plug—plus the Netatmo Thermo Hub (NTG01) and Netatmo Smart 2-in-1 Sensor (NAS01) under the same Legrand Group vendor ID 4129. The Wi-Fi switches, dimmer, receptacle and plugs pair directly with Matter platforms; the NAS01 sensor uses Thread; the NTG01 hub bridges the ORIGINAL thermostat range into Matter over Wi-Fi. Legrand’s 2nd Gen devices set up directly in Amazon Alexa, Apple Home, Google Home or Samsung SmartThings, while Netatmo thermostats must first be installed in Home + Control.

Facts on this page come from the CSA’s Distributed Compliance Ledger vendor 4129 records, Legrand’s Smart Lighting with Wi-Fi (2nd Gen) FAQ and Matter page, Netatmo’s Thermostat ORIGINAL page and help articles, Apple’s Matter support page, and Home Assistant’s Netatmo integration page. Certification lists can change; check the CSA ledger for Legrand Group for current status.

CSA compliance records for Legrand Group vendor 4129

The CSA Distributed Compliance Ledger lists Legrand Group as vendor 4129 with seven registered products, but registration is not the same as a compliance record. The certified firmware entries we checked on 28 October 2026 are:

Legrand’s FAQ also names WWMP30 as a Matter-enabled 2nd Gen product, but the CSA vendor 4129 product list shows no WWMP30 model. Treat WWMP30 as FAQ-listed until a compliance record appears on the ledger, and verify any model yourself with the steps in how to check Matter certification.

Legrand radiant 2nd Gen Wi-Fi devices: direct Matter setup, no Smart Lights app

Legrand’s Matter page says the radiant Smart Lighting with Wi-Fi (2nd Generation) family is Matter-enabled and connects directly to Matter-compatible platforms from Amazon, Apple, Google and Samsung. At least one smart home platform, typically a smart speaker or hub, must be installed before setup. The 2nd Gen products are not compatible with the older Smart Lights app used by 1st Gen devices; the Matter-enabled products set up directly in the platform app, according to Legrand’s Smart Lighting with Wi-Fi (2nd Gen) FAQ.

The same FAQ states that the Matter-enabled switches and dimmers require a neutral wire in the electrical box, and the whole 2nd Gen family uses 2.4 GHz Wi-Fi only. For the in-wall WWMRL10WH switch, WWMRL51WH dimmer and WWMRR15WH receptacle, this means wiring with a neutral; for the WWMP10 and WWMP31 plugs, the neutral requirement does not apply. The original QR code is only for initial setup with the first platform; after that, each additional platform can generate its own pairing code from device settings.

Netatmo Thermo Hub NTG01: Matter 1.3 bridge for the ORIGINAL thermostat range

The Netatmo Thermo Hub is the Matter bridge for the ORIGINAL thermostat range, not for Netatmo’s Smart Thermostat, Smart Modulating Thermostat or Smart Radiator Valves, which have no Matter compliance records in the CSA ledger. The Wired Thermostat ORIGINAL product page notes the hub is included in the pack and lists “Matter compatibility via certified Thermo Hub.” According to Netatmo’s ORIGINAL range Matter help article, once the hub is shared, the Thermostat ORIGINAL and Radiator Valve ORIGINAL appear in the target platform as thermostats showing current temperature and target temperature only. The hub itself is not controllable, and Thermo Link ORIGINAL is not exposed in Matter.

For Netatmo’s non-Matter Smart Thermostat, Smart Modulating Thermostat and Smart Radiator Valves, Home Assistant can use its separate cloud Netatmo integration, which requires a Netatmo account and is not a Matter setup.

Netatmo Smart 2-in-1 Sensor NAS01: the Thread device in the group

The NAS01 is the only device under Legrand Group vendor 4129 that uses Thread. The CSA records show early 2023 certifications with Thread and Bluetooth, and the latest 1.1.1 record from 2 November 2023 is Thread-only, per the CSA certificate CSA23D08MAT41817-24. This means the NAS01 needs a Thread border router, not the 2.4 GHz Wi-Fi network used by the Legrand 2nd Gen plugs and in-wall devices. Apple’s Matter pairing support page lists Thread-enabled home hubs such as Apple TV 4K, HomePod (2nd generation) or HomePod mini as border routers, and notes that Thread-enabled iPhone devices running iOS 18 can locally pair and manage Thread accessories without a separate home hub.

Why Legrand’s Smart Lighting with Netatmo range is not Matter-compatible

Legrand sells two smart lighting families with Netatmo branding in the radiant and adorne collections. Legrand’s Matter page explicitly says those Smart Lighting with Netatmo devices are not Matter-compatible. They are separate from the 2nd Gen Smart Lighting with Wi-Fi products covered here, so a “Legrand dimmer” query can point to two different ranges: the Matter-enabled WWMRL51WH, or a Netatmo-branded dimmer that stays in the Netatmo/Home + Control ecosystem and does not appear in Matter.

Getting the Thermo Hub Matter code from Home + Control

Install the Thermo Hub and your Thermostat ORIGINAL or Radiator Valve ORIGINAL in Home + Control first. Then generate the Matter sharing code from the app, per Netatmo’s Matter sharing help article:

The code is valid for 5 minutes. The QR code printed on the hub is for installing it in Home + Control, not for adding a Matter platform. Do not factory reset the hub or thermostats unless specifically instructed. This is the same multi-admin sharing flow covered in our multi-admin guide.

Generating a second Legrand pairing code after the first platform

For Legrand 2nd Gen devices, the original QR code works only for the first platform. After a device is set up in Apple Home, for example, Legrand’s FAQ gives this exact path: tap into the device in the Apple Home app, tap the settings icon in the bottom right corner, scroll down and select “Turn on Pairing Mode.” A new Matter setup code appears on screen for other platforms to associate, according to Legrand’s Smart Lighting with Wi-Fi (2nd Gen) FAQ.

Platform controls for Legrand’s Wi-Fi devices and the Netatmo Thermo Hub

MatterCheck has no Legrand or Netatmo product rows in its matrix records; the capabilities below reflect MatterCheck’s per-device-type cells for thermostats, plug/outlets and switch/buttons, not tests of these specific models.

Apple Home’s “Turn on Pairing Mode” and thermostat support

Apple Home lists bridges, outlets, switches, thermostats and sensors among the Matter accessory types it supports, per Apple’s Matter support page. MatterCheck’s thermostat cell for Apple Home shows pairing and control, with climate automations supported as actions when a hub is present, but whether a Matter thermostat can start a Home automation is unconfirmed. Plugs and outlets pair, control, trigger and act in automations. Switches and buttons pair and work as press triggers, but a pure button is only partially controllable and cannot be an automation action. An Apple Home hub such as HomePod or Apple TV is recommended for remote access and automations; with iOS 18 or later an iPhone can add and control Matter accessories without a hub. See our Apple Home guide for details.

Google Home and Alexa treat Legrand plugs and Netatmo thermostats the same way

Google Home and Alexa both pair Matter thermostats and plugs/outlets and use them in automations as triggers and actions. Switches and buttons pair and work as starter triggers, but are only partially controllable and cannot be automation actions. A Google or Nest Matter hub is required for Google Home; a Matter-enabled Echo or eero hub is required for Alexa. For the Thermo Hub specifically, the exposed thermostat controls remain current temperature and target temperature only, matching Netatmo’s ORIGINAL range Matter documentation. See our Google Home guide and our Alexa guide.

SmartThings and Home Assistant: Matter Server for Legrand, cloud integration for non-Matter Netatmo

SmartThings thermostats pair, control and work as automation triggers and actions. Plugs and outlets do the same; switches and buttons pair and work as press triggers but cannot be automation actions. A SmartThings-compatible hub is required. Home Assistant’s Matter Server maps thermostats to the climate domain and plug/outlets to switch entities with full automation support, while switches and buttons expose event entities with press triggers but cannot be automation actions. For Netatmo’s non-Matter Smart Thermostat, Smart Modulating Thermostat and Smart Radiator Valves, use the separate cloud Netatmo integration in Home Assistant, which requires a Netatmo account and talks to Netatmo’s cloud service per Home Assistant’s Netatmo integration page. See our SmartThings guide and our Home Assistant guide.

What to do when a Legrand WWMRL10WH or Netatmo NTG01 won’t pair

First check the transport. Legrand 2nd Gen devices and the Thermo Hub use 2.4 GHz Wi-Fi, and the Thermo Hub installation article says no guest Wi-Fi or VPN, per Netatmo’s Thermo Hub installation help article. For a Thermo Hub, the Matter association code expires after 5 minutes; generate a new one from Manage Matter sharing in Home + Control. For a Legrand device that is unreachable, cycle power before a factory reset: unplug plug-in models or switch off the breaker for in-wall switches and dimmers, wait a few minutes, then try again. If a factory reset is unavoidable, the Legrand FAQ describes holding the plug-in button for 10–15 seconds until the light blinks red and green, and for in-wall devices removing the wall plate and holding the reset button until the indicator flashes. See our device-not-pairing guide and our lost setup code guide for more steps.

How we checked

This page is based on maker pages, the CSA certification ledger and third-party reports fetched 28 October 2026. It reflects the CSA certificate IDs, firmware versions and dates in the ledger, plus Legrand’s and Netatmo’s published support pages, with no hands-on testing.

This guide was drafted by AI from the dated sources linked above and checked against them by automated fact-check passes before publishing. How our content is made.

More MatterCheck guides: How to check Matter certification · Thread vs Wi-Fi · Matter light switch and dimmer support · Matter smart plug support · Matter thermostat support

This guide was drafted by AI from the dated sources linked above and checked against them by automated fact-check passes before publishing. How our content is made.