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BOSCH ST Champion in Home Assistant

Zigbee

Quirk proposed, not merged yet

Zigbee device – see the note above on what ZHA needs for it.

Brand: BOSCH ST
Model: Champion
Radio: Zigbee

How the device gets into Home Assistant

official ZHA – with a Zigbee coordinator and the ZHA integration; for all its functions it needs a custom quirk, see above. Integration
official Bosch Smart Home Controller – paired with the Bosch Smart Home Controller, which the Bosch SHC integration connects to Home Assistant. Integration

ZHA quirks for this device

Quirk proposed, not merged yet Recommended quirk

Proposed to ZHA and waiting for review – the maintainers check it before it becomes part of Home Assistant.

Adds: Temperature Humidity Battery Illuminance Air quality index Estimated CO₂ Smoke Self-test active Start self-test Pre-alarm +4

Source: zha-device-handlers · pull request #5250 · by @dehnerson · August 13, 2026
Signature: BOSCH ST / Champion

1 more quirk for this device

Quirk proposed, not merged yet BOSCH ST / Champion zha-device-handlers · pull request #3293 · by @sarangnemo · August 9, 2024

The quirk is not part of ZHA yet. You can use it as a custom quirk until it is:

Tell ZHA where custom quirks are kept – in configuration.yaml:
```
zha:
  custom_quirks_path: /config/custom_zha_quirks/
```
Create that folder and save the quirk as a .py file in it.
Restart Home Assistant. If the device was paired before, reconfigure it or remove and pair it again so the quirk is applied.
Check it worked: the device page shows the quirk under Zigbee info.

A custom quirk has not been reviewed by the ZHA maintainers. Delete the file once the quirk is part of a Home Assistant release – otherwise the old copy takes precedence.

All quirks in the ZHA quirk database →

Sources: Zigbee2MQTT, ZHA quirks, Z-Wave JS, the Matter certification database, Shelly, ESPHome, Tasmota, Tuya Local and the issue trackers on GitHub. Reports are assigned to a device by the identifiers they contain; the sentences come from the integration pages, where a language model writes them from the titles.

Facts about this device

How the device gets into Home Assistant

ZHA quirks for this device