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Tuya OXT-4CH-RELAY-DC in Home Assistant

Relays & modules · Zigbee · 4 channel relay module DC

Zigbee2MQTT No quirk 1 open report

Zigbee2MQTT has a definition for this device. ZHA has no quirk for it – many devices work in ZHA without one, but features outside the Zigbee standard may be missing.

Facts about this device

Brand
Tuya
Model
OXT-4CH-RELAY-DC
Device type
Relays & modules
Radio
Zigbee
Power
Mains powered
Reports itself as
_TZE204_m9dzckna
Same device as
Tuya OXT-4CH-RELAY-AC
Zigbee2MQTT
Device page on zigbee2mqtt.io

How the device gets into Home Assistant

  • official ZHA – with a Zigbee coordinator and the ZHA integration. A device that follows the Zigbee standard works without a quirk; how completely this model does is not confirmed. 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 The Tuya outdoor temperature and humidity sensor (SNT857Z) is not supported in ZHA, so Home Assistant cannot read its measurements. Adding support would enable monitoring of outdoor conditions. since October 1, 2025 · zha-device-handlers #4362

ZHA quirks for this device

There is no quirk for this device – neither in ZHA nor proposed or shared as a custom quirk.

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.

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.

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