Water Alarm · sensor Zigbee
The Bosch BWA-1 (Water Alarm) is a Zigbee sensor from Bosch. It monitors your home and reports back to your hub — useful for automations that react to motion, contact, temperature, humidity, leaks or air quality. It's confirmed working on deCONZ. Because it speaks standard Zigbee, the Bosch BWA-1 pairs with any Zigbee coordinator once it's joined to one of the supported bridges above.
Bosch BWA-1 is a Zigbee sensor from Bosch. It is compatible with: deCONZ.
| ZHA (Home Assistant) | ✗ Not supported |
| Zigbee2MQTT | ✗ Not supported |
| deCONZ | ✓ Supported |
| Zigbee2Tasmota | ✗ Not supported |
| ioBroker | ✗ Not supported |
| Zigbee for Domoticz | ✗ Not supported |
| iHost | ✗ Not supported |
The Bosch BWA-1 is widely available on Amazon in the US, UK, Canada and across Europe. Prices and stock vary by region — the link below opens results for your local Amazon store.
🔎 Find the Bosch BWA-1 on Amazon →As an Amazon Associate, WillItPair earns from qualifying purchases. This doesn't affect what you pay.
The Bosch BWA-1 needs a Zigbee coordinator (USB stick) to join your network. These are the ones we'd buy:
As an Amazon Associate, WillItPair earns from qualifying purchases. This doesn't affect what you pay.
It is not natively supported by Home Assistant's ZHA integration, but you can use it via Zigbee2MQTT (Z2M) if Z2M support is listed below.
No, this device is not currently listed as supported by Zigbee2MQTT.
Any Zigbee coordinator paired with one of the supported bridges (deCONZ) will let you use this device. A SONOFF Zigbee dongle or a ConBee II are common choices.