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COOLO CS-201Z in Home Assistant

Climate sensors · Zigbee · Soil moisture sensor

Zigbee2MQTT Quirk proposed, not merged yet 2 open reports

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

Facts about this device

Brand
COOLO
Model
CS-201Z
Device type
Climate sensors
Radio
Zigbee
Power
Battery
Reports itself as
ZG-303Z, AY-303Z, AY-302Z, _TZE200_npj9bug3, _TZE200_wrmhp6b3, AOYAN
Also sold as
AOYAN AY-302Z, AOYAN AY-303Z
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
  • 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 Tuya soil sensor is not supported yet. Adding support would let Home Assistant read its moisture levels accurately. since June 23, 2025 · zha-device-handlers #4144
  • support requested A Tuya soil moisture sensor is not supported yet. Adding support would let Home Assistant read its measurements correctly. since June 11, 2025 · zha-device-handlers #4122

Changes proposed for ZHA

  • pull request A soil moisture sensor is not supported in ZHA. Adding support would let Home Assistant read soil moisture data from the device. since October 20, 2026 · zha-device-handlers #5479
  • pull request The AOYAN AY-303Z soil sensor is not supported in ZHA. This pull request would allow Home Assistant to read soil moisture data from the sensor. since September 18, 2026 · zha-device-handlers #5352
  • pull request The Tuya soil moisture sensor is not supported in ZHA, and the proposed change would add support to read soil moisture levels accurately. since January 30, 2026 · zha-device-handlers #4706
  • pull request A proposed change would add support for a humidity sensor and related devices, but this is not yet implemented in ZHA. since November 29, 2025 · zha-device-handlers #4536
  • pull request A soil sensor from HOBEIAN is not supported yet. The proposed change would add support to read its measurements in Home Assistant. since July 2, 2025 · zha-device-handlers #4160

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 report interval Humidity report interval Display unit Temperature alarm Alarm temperature max Alarm temperature min Temperature sensitivity Humidity alarm Alarm humidity max Alarm humidity min +8

Source: zha-device-handlers · pull request #4160 · by @makuser · July 2, 2025 · 8 approvals
Signature: _TZE200_npj9bug3 / TS0601

10 more quirks for this device

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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