Sonoff SNZB-05P Water Leak Sensor ZigBee eWeLink Zigbee2MQTT
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Sonoff SNZB-05P - your reliable guard against flooding
Protect your home and appliances from uncontrolled water leaks with the Sonoff SNZB-05P smart sensor. The device uses the Zigbee 3.0 protocol, which translates into stable communication, low power consumption and the ability to create an extensive network of Zigbee standard devices. The small size and simple installation allow the sensor to be placed without problems in areas prone to flooding, such as around washing machines, dishwashers, radiators or water pipes.
Key benefits and features
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Effective detection down to 0.5 mm of water
The sensor reacts immediately to small amounts of water, allowing quick intervention and minimising flood damage. -
Two operating positions
The unit can be positioned with the sensor downwards (detection of water on the floor) or upwards (detection of dripping water thanks to the special concave design). -
IP67 water- and dust-proof
Protection against moisture, dust and short-term immersion allows reliable operation even in harsher conditions. -
Long-lasting battery operation
Powered by a CR2477 battery, it can operate for up to 5 years without frequent power changes. -
High corrosion resistance
Gold-plated probes guarantee reliable leak detection and protect the sensor from damage due to prolonged contact with moisture. -
Compatibility and flexibility
- Support for the eWeLink app and integration with Zigbee2MQTT and Home Assistant.
- Compatibility with most standard Zigbee 3.0 gateways (including Sonoff Zigbee, Aqara, Tuya).
- Possibility to expand the system in the Zigbee network thanks to mesh functions - if the sensor does not connect directly to the gateway, the signal will be relayed by the nearest device working in the Zigbee network powered by 230 V.
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Hassle-free installation
With no complicated cables and minimal size, the sensor can be laid down or fixed in the most leak-prone areas. -
Additional cable for leak detection
An optional extension cable (sold separately) can be connected, further increasing the sensor's area of operation.
Zigbee 3.0 standard compatibility with various devices
Supports Zigbee control panels using the Zigbee 3.0 protocol, such as SONOFF iHost, NSPanel Pro, ZB Bridge Pro and ZBDongle-E. Theoretically supports the addition of any Zigbee PBX compliant with Zigbee 3.0 protocols, such as Echo 4th Generation, SmartThings Hub V3.
Two operating positions
The sensor can be mounted in two orientations. Oriented downwards, it will immediately detect water collecting on the floor, while positioned upwards - thanks to its concave design - it will react to drips. The illustrations below show both installation methods, allowing you to choose the best solution for your particular location.
What is included
- Sensor: Sonoff SNZB-05P with battery installed.
- Protocol: User manual
A Zigbee 3.0 gateway is required for operation
Technical specifications
- Model: Sonoff SNZB-05P
- Protocol: Zigbee 3.0
- Power supply: button cell battery CR2477 (life span up to 5 years)
- Operating temperature: -10°C to 60°C
- Operating humidity: 0% - 100% RH
- Size: 48 × 48 × 22 mm
- Water resistance: IP67
- Colour: White (UV-resistant materials)
Keep your home safe by avoiding costly repairs and flooding losses. Choose the Sonoff SNZB-05P, a reliable and easy-to-install sensor that will inform you in real time of any water leak. Thanks to integration with the eWeLink app and compatibility with Zigbee2MQTT or Home Assistant, you'll be able to respond to an emergency in no time - even if your Wi-Fi network fails.
Does the Sonoff SNZB-05P work with the Tuya app?
- Yes, the sensor is recognised by the Tuya app and works, but there may be a problem with the battery status being read properly. In practice, this means that the Tuya app may display 0% charge even though the battery is operational.
