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Tuya DCR-RQJ in Home Assistant

Water · Zigbee · Carbon monoxide sensor gas leak detector

Zigbee2MQTT Quirk proposed, not merged yet 1 open report

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

Brand: Tuya
Model: DCR-RQJ
Device type: Water
Radio: Zigbee
Reports itself as: _TZE200_iuk8kupi, _TZE204_iuk8kupi
Zigbee2MQTT: Device page on zigbee2mqtt.io

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 Tuya Zigbee gateway – paired with a Tuya Zigbee gateway and controlled through the Tuya cloud with the Tuya integration. Integration
add-on Zigbee2MQTT – Zigbee2MQTT runs as an add-on and passes the device on to Home Assistant over MQTT. Integration · Source

Known problems and fixes

Requests for ZHA support

support requested A Smart Gas & CO Alarm is not working with ZHA, making it impossible to receive alerts. Adding support would allow the device to trigger notifications during gas or carbon monoxide leaks. since July 14, 2023 · zha-device-handlers #2474

Changes proposed for ZHA

pull request A proposed change to add support for a Tuya CO and natural gas alarm box, enabling Home Assistant to monitor gas leaks. since February 5, 2026 · zha-device-handlers #4721

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: CO concentration Self test result Mute siren Self test Silence alarm % Lower explosive limit Alarm ringtone Alarm duration Preheat active Fuel gas concentration +1

Source: zha-device-handlers · pull request #4721 · by @EmanuelLoos · February 5, 2026
Signature: _TZE204_iuk8kupi / TS0601

2 more quirks for this device

Custom quirk shared in an issue _TZE200_iuk8kupi / TS0601 zha-device-handlers · issue #2474 · by @zolakt · July 29, 2025 · 1 approval
Custom quirk shared in an issue _TZE200_iuk8kupi / TS0601 zha-device-handlers · issue #2474 · by @zolakt · September 8, 2023

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 →

Alternatives

The same job from other makers – devices of the same type and radio that work with Home Assistant too.

Aqara SJCGQ12LM Water · Zigbee · Water leak sensor T1 Zigbee2MQTT ZHA quirk Review · from 21.96 €
MultIR MIR-WA100 Water · Zigbee · Water leakage sensor Zigbee2MQTT Review
Salus Controls WLS600 Water · Zigbee · Water leakage sensor Zigbee2MQTT Review
SONOFF SNZB-05P Water · Zigbee · Zigbee water sensor Zigbee2MQTT Review

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.