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Develco HESZB-120 in Home Assistant
Smoke & safety · Zigbee · Fire detector with siren
Zigbee2MQTT
Quirk included in ZHA
1 open report
This device is known to both Zigbee integrations: Zigbee2MQTT has a definition for it, and ZHA has a quirk that adapts it.
We have a detailed page on this device with compatibility ratings and prices.
Details and compatibility
Facts about this device
- Brand
- Develco
- Model
- HESZB-120
- Device type
- Smoke & safety
- Radio
- Zigbee
- Power
- Battery
- Reports itself as
- HESZB-120
- Also sold as
- Frient 94431
- Zigbee2MQTT
- Device page on zigbee2mqtt.io
How the device gets into Home Assistant
- official ZHA – with a Zigbee coordinator and the ZHA integration; the quirk the device needs is part of ZHA.
- add-on Zigbee2MQTT – Zigbee2MQTT runs as an add-on and passes the device on to Home Assistant over MQTT.
Known problems and fixes
Open problems
- open Reported problem #4455
Changes proposed for ZHA
- pull request A change to ZHA for this device has been proposed and is waiting for review.
ZHA quirks for this device
Quirk included in ZHA Recommended quirk
Part of ZHA – Home Assistant uses it on its own, nothing to install.
Source:
zha-device-handlers · since zha-quirks 2.2.2
Signature: frient A/S / HESZB-120
3 more quirks for this device
-
Quirk included in ZHA
Develco Products A/S/HESZB-120zha-device-handlers · since zha-quirks 2.2.2 -
Quirk proposed, not merged yet
frient A/S/HESZB-120zha-device-handlers · pull request #4460 · by @PrintingRat · 2025年11月2日 · 1 approval -
Quirk proposed, not merged yet
Develco Products A/S/HESZB-120zha-device-handlers · pull request #4460 · by @PrintingRat · 2025年11月2日 · 1 approval
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.