Bosch Smart Home · Source
Smart Home · Radiator thermostats
Bosch Radiator Thermostat II [+M] (Anthracite)
The Bosch Radiator Thermostat II [+M] in Anthracite controls a compatible radiator valve and can be operated on the device or through a compatible smart-home system. It uses either Bosch Smart Home or Matter over Thread. Connected functions require the appropriate hub, sold separately.
Source: manufacturer information
Why it stands out
- Either Bosch Smart Home or Matter over Thread
- Temperature adjustment in 0.5-degree increments
- Illuminated, adjustable display and multicoloured LED ring
- M30 × 1.5 mm connection; Danfoss RA and RAVL adapters included
- Two replaceable AA batteries; frost and limescale protection
Specifications
| Attribute | Value |
|---|---|
| Model / variant | Radiator Thermostat II [+M], Anthracite · BTH-RAD · single device |
| Article / EAN | 8750002982 · 4062321899370 |
| Dimensions / weight | 51 × 51 × 87 mm (W × H × D); 135 g without batteries |
| Valve connection | M30 × 1.5 mm; included Danfoss RA and RAVL adapters; check other valves against the adapter list |
| Power supply | 2 × replaceable LR6/Mignon/AA alkaline batteries; included according to the manufacturer |
| Battery life | Manufacturer page lists typically < 2 years; dependent on use and system, no fixed runtime promised |
| Radio / standard | Manual: ZigBee 3.0 in Bosch mode or Matter over Thread; Bluetooth for setup; 2.4–2.4835 GHz |
| System requirements | Bosch: Controller I or II and app according to the manual. Direct Matter: Matter controller plus Thread Border Router, possibly integrated. Hub not included. |
| Features / compatibility | Scheduling, automation and voice features vary by system; no simultaneous Bosch/Thread operation claimed; incompatible with Bosch EasyControl |
| Controls / indicators | Rotary push-button; 0.5-degree increments; illuminated, adjustable display; multicoloured LED ring; child lock |
| Protection / environment | IP20; 0 to +50 °C; max. 80% humidity, non-condensing; dry indoor rooms; frost and limescale protection according to the manufacturer |
| Included items | 1 Thermostat II [+M], 2 AA batteries, 1 Danfoss RA adapter, 1 Danfoss RAVL adapter; no hub |
| Software / security updates | According to the manufacturer, at least four years after the last sale in its online shop; no fixed end date claimed |
| Manual / adapter list | https://www.bosch-smarthome.com/rom/trv2m-manual · https://www.bosch-smarthome.com/radiator-thermostat-adapter |
| Bosch / Matter feature comparison | https://www.bosch-smarthome.com/media/de/content/01_produkte/heizung/01_heizkoerper_thermostat/de_matter_uebersichtstabelle_trviim.pdf |
Related guides
How we check product information
- Exact model and specifications match the listed product.
- Practical uses and limitations are described from manufacturer information.
- Orderability in Germany and merchant evidence are checked.
- Traceable sources.
These checks concern information only. They are not hands-on tests or scored reviews.
Description
The Bosch Radiator Thermostat II [+M] replaces the head on a compatible radiator and controls its valve. This entry describes the single Anthracite device, article 8750002982, not a starter kit, three-pack or older version without [+M]. A rotary push-button adjusts the target temperature in 0.5-degree increments. An illuminated, adjustable display and multicoloured LED ring show settings and status.
According to the manual, Bosch mode requires a configured Bosch Smart Home Controller I or II and the Bosch app. Alternatively, the thermostat can connect directly as a Matter device over Thread, requiring a compatible Matter controller and a Thread Border Router, integrated or separate. It is not a direct Wi-Fi thermostat. Bosch and Matter modes are alternatives; changing systems requires a reset following the instructions. Schedules, automations, voice control and remote access depend on the platform. Bosch-specific services are not automatically available in direct Matter mode. EasyControl is incompatible.
The valve connection is M30 × 1.5 mm. The manufacturer includes Danfoss RA and RAVL adapters and two AA batteries; other valves may require additional adapters. Follow the mounting instructions; draining heating water is unnecessary, but defective valves require professional attention. IP20 means dry indoor use, not waterproofing. Scheduling can support demand-based heating but does not guarantee specific savings. The gallery contains manufacturer and retailer images, not a hands-on test.
Use cases
- Controlling an individual compatible radiator in the Bosch Smart Home system
- Adding it to an existing Matter-over-Thread system with a suitable hub
- Manual temperature adjustment and, depending on the system, scheduled heating
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