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SONOFF SNZB-04PR2 in Home Assistant

Door & window · Zigbee · Contact sensor

Zigbee2MQTT Quirk proposed, not merged yet

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

Brand: SONOFF
Model: SNZB-04PR2
Device type: Door & window
Radio: Zigbee
Power: Battery
Reports itself as: SNZB-04PR2
Zigbee2MQTT: Device page on zigbee2mqtt.io

Where to buy

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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

Changes proposed for ZHA

pull request The SONOFF SNZB-04PR2 siren would not trigger tamper alerts in Home Assistant. The pull request would add a quirk to detect tampering events. since June 29, 2026 · zha-device-handlers #5131
pull request Proposed support for Sonoff SNZB-02P, SNZB-02M, and SNZB-04PR2 devices to enable proper functionality in Home Assistant. since August 14, 2025 · zha-device-handlers #4263

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: Tamper

Source: zha-device-handlers · pull request #5131 · by @phipz · June 29, 2026 · 1 approval
Signature: eWeLink / SNZB-04PR2

3 more quirks for this device

Quirk proposed, not merged yet SONOFF / SNZB-04PR2 zha-device-handlers · pull request #5131 · by @phipz · June 29, 2026 · 1 approval
Quirk proposed, not merged yet eWeLink / SNZB-04PR2 zha-device-handlers · pull request #4263 · by @laity-w-sudo · August 14, 2025
Quirk proposed, not merged yet SONOFF / SNZB-04PR2 zha-device-handlers · pull request #4263 · by @laity-w-sudo · August 14, 2025

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.

Third Reality 3RVS01031Z Door & window · Zigbee · Zigbee vibration sensor Zigbee2MQTT ZHA quirk 1 open report Review
Aqara DJT11LM Door & window · Zigbee · Vibration sensor Zigbee2MQTT ZHA quirk Review
Immax 07045L Door & window · Zigbee · Magnetic contact sensor Zigbee2MQTT Review
Nous E3 Door & window · Zigbee · Door 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.