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Tuya SMKG-2KNL-SD in Home Assistant

Water · Zigbee · Smart leakage protector 63a with leakage monitoring

Zigbee2MQTT Quirk proposed, not merged yet

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

Brand: Tuya
Model: SMKG-2KNL-SD
Device type: Water
Radio: Zigbee
Power: Mains powered
Reports itself as: _TZE284_5m4nchbm
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

Changes proposed for ZHA

pull request A pull request proposes adding support for a Tuya DIN metering breaker, which is not recognized by ZHA. This would allow ZHA to monitor and control power distribution via the breaker. since October 17, 2026 · zha-device-handlers #5464
pull request A proposed change to add support for the TS0601 RCBO device, enabling Home Assistant to monitor and control electrical circuits safely. since March 18, 2026 · zha-device-handlers #4835

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: Switch Energy Current Power Voltage Fault Power outage memory Child lock Leakage test Temperature +13

Source: zha-device-handlers · pull request #4835 · by @alvarogl · March 18, 2026
Signature: _TZE284_5m4nchbm / TS0601

1 more quirk for this device

Quirk proposed, not merged yet _TZE284_5m4nchbm / TS0601 zha-device-handlers · pull request #5464 · by @sicrisembay · October 17, 2026

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
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