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Tongou TOSA1-01WXJAT2A in Home Assistant

Energy · Zigbee · Smart energy meter, two wire

Zigbee2MQTT Quirk proposed, not merged yet 2 open reports

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

Brand: Tongou
Model: TOSA1-01WXJAT2A
Device type: Energy
Radio: Zigbee
Power: Mains powered
Reports itself as: _TZE284_4hdbt6rn
Same device as: Tongou TO-Q-SA1
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 The Tongou TOSA1-01WXJAT2A is not supported. Adding a quirk would let Home Assistant interact with it properly. since January 15, 2026 · zha-device-handlers #4659
support requested A Smart Energy Accessory from Tongou is not working with ZHA. The request is to add support for proper integration. since January 11, 2026 · zha-device-handlers #4643

Changes proposed for ZHA

pull request A pull request proposes adding support for the Tongou TO-Q-SA1 power meter, which would let Home Assistant monitor electricity usage from this device. since June 11, 2026 · zha-device-handlers #5085
pull request A Tongou TO-Q-SA1 power meter is not supported in Home Assistant. Adding a quirk would allow monitoring of electricity usage. since March 3, 2026 · zha-device-handlers #4807

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: Device status Total energy Energy phase A Energy phase B Energy phase C Total power Total current Energy produced Total power factor Update frequency +29

Source: zha-device-handlers · pull request #5085 · by @e27182 · June 11, 2026
Signature: _TZE284_pglpvdar / TS0601

2 more quirks for this device

Quirk proposed, not merged yet _TZE284_pglpvdar / TS0601 zha-device-handlers · pull request #4807 · by @Andrew001207 · March 3, 2026
Quirk proposed, not merged yet _TZE284_4hdbt6rn / TS0601 zha-device-handlers · pull request #4807 · by @Andrew001207 · March 3, 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.

Legrand 412015 Energy · Zigbee · DIN power consumption module Zigbee2MQTT Review
Tuya SPM01 Energy · Zigbee · Smart energy monitor for 1P+N system Zigbee2MQTT Custom quirk needed Review
Develco EMIZB-132 Energy · Zigbee · Wattle AMS HAN power-meter sensor Zigbee2MQTT ZHA quirk 1 open report Review
BTicino F20T60A Energy · Zigbee · DIN power consumption module 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.