SONOFF SNZB-05P Zigbee Water Leak Detector with Extendable Sensor Cable

Certified IP67 and designed for direct floor placement, its raised, concave-designed probe detects liquid levels as low as 0.5 mm without triggering false alarms on metallic surfaces. Compatible with SONOFF Zigbee 3.0 hubs and Home Assistant via ZHA or Zigbee2MQTT, the SONOFF SNZB-05P expandable water leak detector is the passive monitoring solution for at-risk areas, protecting basements, kitchens, and boiler rooms. A compatible Zigbee 3.0 hub is required.

Serial extension cables, unlimited length

Where most leak sensors are limited to their direct contact area, the SNZB-05P accepts the connection of detection cables sold separately or in a kit, connectable in series without any length limit. This capability allows monitoring long pipes, the perimeter of a water heater, or an entire floor surface from a single device. Whether the area concerned is a narrow space under a sink or a large basement area, the detection accuracy remains identical.

Local alerts without Wi-Fi and five years of battery life with the SONOFF SNZB-05P expandable water leak detector

A CR2477 battery provides up to five years of battery life based on 50 daily triggers, without frequent replacement and without wiring during installation. As soon as a leak is identified, the SONOFF SNZB-05P expandable water leak detector sends an instant push notification to the smartphone and can trigger an alarm on the local Zigbee gateway, even if the internet is down, thanks to locally executed Zigbee scenes.

Compatible with NSPanel Pro, iHost, ZB Bridge variants, and Home Assistant

Compatible hubs include the SONOFF NSPanel Pro, iHost, ZB Bridge variants, ZB Bridge-P and ZB Bridge-U, as well as the SmartThings Hub V3. For Home Assistant, the SNZB-05P integrates directly via ZHA or Zigbee2MQTT with a ZBDongle-P or ZBDongle-E dongle. Alexa, Google Home, SmartThings, Alice, and IFTTT platforms allow automated triggers and status requests from third-party interfaces.

FAQ

Is the CR2477 battery included in the box?

No, the CR2477 battery is not included and must be supplied separately. It offers up to five years of battery life based on 50 daily triggers according to manufacturer data.

Are the extension cables sold with the sensor?

Yes, this version comes with a detection cable that allows extending the monitoring area beyond the main sensor. It can be used to protect sensitive areas such as pipes, water heaters, basements or technical rooms.

Does the SNZB-05P trigger false alarms on metallic surfaces?

No, the raised probe is specifically designed to work reliably on metallic surfaces without untimely triggering, unlike flat contact sensors that can be sensitive to condensation or residual moisture.

Note: A Zigbee hub is required.

Specifications