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BoschThermostats

Bosch Radiator Thermostat II [+M]

CSA Certified

The Bosch Radiator Thermostat II [+M] is Matter certified (certificate CSA243E0MAT43667-24, certified Aug 5, 2024). It uses Thread, so it needs a Thread border router as well as your platform’s Matter controller. A certified Matter device can be added to any Matter controller whose app supports its device type, such as Apple Home, Google Home, Alexa, SmartThings or Home Assistant; features vary by app. The maker’s own site names Apple Home, Alexa and SmartThings. This version is sold outside the US; we link no US store for it.

Certificate data: CSA ledger read . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant

CSA Matter certified (certificate CSA243E0MAT43667-24). Uses Thread, so it needs a Thread border router as well as your platform’s Matter controller.

At a glance: Matter certified: Yes, Aug 5, 2024 · Connectivity: Thread, Bluetooth · Platforms: Apple Home, Amazon Alexa and Samsung SmartThings (named by the maker); Google Home (listed in its catalog record, unverified) · Thread border router: Needed (uses Thread)

Works with
Apple Home, Amazon Alexa and Samsung SmartThings (named by the maker)
CSA certificate
CSA243E0MAT43667-24, certified Aug 5, 2024
Network & hub
Thread; needs a Thread border router as well as your platform’s Matter controller

Updated : the last change to this page’s certification, platform or store facts.

Not sold by a US store we can verify. Similar CSA-certified smart thermostats you can buy:

Independent guide. We may earn a commission through affiliate links. Direct non-affiliate links are labeled. How our links work

Why these: we have no US store link we can verify for this exact model. Each is a different product, certified by the CSA as the same device type, thermostat, with a CSA certificate for its own model and a store link we checked. The order is not a ranking.

Bosch Radiator Thermostat II [+M] Matter device

Sold outside the USEU version

Sold outside the US: we don't link a US store for this regional version.

Shop thermostats you can buy now →

Matter 1.2 certificate

Its certificate, CSA243E0MAT43667-24, is for Matter 1.2, certified Aug 5, 2024. The Matter version is the specification version on the certificate's ledger record.

Source: CSA Distributed Compliance Ledger, read Nov 10, 2026.

What Matter 1.2 added, and which devices use it →

Certified software versions

The CSA ledger lists 3 certified software versions for the device on certificate CSA243E0MAT43667-24. The most recent is software 2.00.09, certified Aug 5, 2024, for Matter 1.2. That is the certificate this page shows.

Certification covers each software version listed. It does not establish the software on a unit you buy.

Source: CSA Distributed Compliance Ledger, device record (vendor ID 4617, product ID 12306), read Nov 10, 2026.

Bosch Radiator Thermostat II [+M] is a smart thermostat. It is listed as a Thread device, so Matter setup needs a Thread border router such as a HomePod mini or a Google Nest Hub (2nd gen). It is CSA Matter certified (August 5, 2024), so it can work with Matter apps such as Apple Home, Google Home, Alexa and SmartThings when the app supports its device type; supported features vary by app.

ThreadBluetooth

Specifications

Brand
Bosch
Category
Thermostats
Protocols
Thread, Bluetooth
Certificate ID
CSA243E0MAT43667-24
Certified
Aug 5, 2024
Firmware
2.00.09

Ecosystem compatibility

Matter
Apple Home
Alexa
Google HomeUnverified
SmartThings

Checked platforms are named on the maker’s own site. Unverified: listed in its catalog record, not confirmed by the maker; check exact controller support.

Quick answers

Is the Bosch Radiator Thermostat II [+M] Matter certified?
Yes. MatterCatalog matches it to CSA Matter certificate CSA243E0MAT43667-24, certified Aug 5, 2024.
Does the Bosch Radiator Thermostat II [+M] work with Apple Home or HomeKit?
Yes. The maker’s own site names Apple Home, and it is Matter certified (certificate CSA243E0MAT43667-24). Apple says an iPhone using iOS 18 or later can add Matter accessories to the Home app without a home hub. A Thread accessory needs a Thread-enabled home hub such as an Apple TV 4K, HomePod (2nd generation) or HomePod mini, or a compatible third-party Thread border router. Apple’s Matter page lists thermostats among the accessory types the Home app supports.

Add a Matter device to Apple Home

Does the Bosch Radiator Thermostat II [+M] work with Google Home?
Likely. It is Matter certified (certificate CSA243E0MAT43667-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Google Home on a page we hold. Google says you need a Matter-enabled hub device set up on your home wireless network before you can add Matter devices to Google Home. A Thread device needs a hub that is also a Thread border router: Google Home Speaker (2026), Nest Hub (2nd gen), Nest Hub Max, Nest Wifi Pro (Wi-Fi 6E) or Google TV Streamer (4K). Google’s supported-device-types page lists the Thermostat type.

Add a Matter device to Google Home

Does the Bosch Radiator Thermostat II [+M] work with Alexa?
Yes. The maker’s own site names Alexa, and it is Matter certified (certificate CSA243E0MAT43667-24). Alexa needs a Matter-compatible Echo; Amazon says its Echo devices support “a subset of Matter 1.5 and lower device types”, so check that yours does. A Thread device needs an Echo with a built-in Thread border router, such as the Echo (4th Gen) or Echo Hub.

Add a Matter device to Alexa

Does the Bosch Radiator Thermostat II [+M] work with Samsung SmartThings?
Yes. The maker’s own site names SmartThings, and it is Matter certified (certificate CSA243E0MAT43667-24). SmartThings adds Matter devices through the SmartThings app and a Matter controller. Samsung says a Thread device needs a Matter controller that includes a Thread border router; the latest SmartThings Hub, SmartThings Station, Samsung TVs and Samsung Family Hub refrigerators have a Thread border router built in.

Add a Matter device to SmartThings

Does the Bosch Radiator Thermostat II [+M] work with Home Assistant?
Likely. It is Matter certified (certificate CSA243E0MAT43667-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Home Assistant on a page we hold. Home Assistant says: “Adding a new Matter device only works in the Home Assistant Companion app.” A Thread device needs a Thread border router, which Home Assistant describes as a network device that connects a Thread mesh network to other IP networks such as Ethernet or Wi-Fi.

Add a Matter device to Home Assistant

Does the Bosch Radiator Thermostat II [+M] use Thread or Wi-Fi?
Thread. Its catalog record lists Thread, and Matter devices that use Thread need a Thread border router in the home, in addition to your platform’s Matter controller.
Does the Bosch Radiator Thermostat II [+M] need a hub or a Thread border router?
Yes: a Thread border router, in addition to your platform’s Matter controller. A Thread border router connects Thread devices to your home network; Apple TV 4K, HomePod mini, Nest Hub (2nd gen) and Echo (4th Gen) are examples, and each platform lists its own.

Which devices are Thread border routers

When was the Bosch Radiator Thermostat II [+M] Matter certified?
The CSA certified it on Aug 5, 2024 (certificate CSA243E0MAT43667-24). That is its certification date, not a retail release date, which MatterCatalog does not state.
Is the Bosch Radiator Thermostat II [+M] sold in the US?
MatterCatalog labels it as sold outside the US: EU version. We don't link a US store for this regional version.

From this product’s catalog record, not hands-on testing. Editorial policy

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