Stop leaks before they turn into a problem
The SNZB-05P Water Leak Sensor in combination with the WLDC200 detection cable reliably monitors the presence of liquid and protects pipes, appliances, and hard-to-reach areas.
It provides instant alerts, reliable local alarms, and allows for easy connection with smart automations in your home.
Why this set stands out
- Leak & Drip Accuracy: Elevated probes detect as little as 0.5 mm of water; the concave well catches slow drips right at the source.
- Metal-Surface Ready: Optimized design prevents false alarms on stainless steel trays, boilers, or HVAC drip pans.
- Wide-Area Coverage: The WLDC200 cable is included; you can chain multiple cables in series for virtually unlimited detection length.
- Instant Notifications: App push notifications + local Zigbee scenes that keep hub alarms functional even without Wi-Fi.
- Zigbee 3.0 Ecosystem: Works with SONOFF NSPanel Pro, iHost, ZB Bridge/Pro/Ultra, SmartThings Hub V3.
- Home Assistant Friendly: Integration via ZHA or Zigbee2MQTT (use SONOFF ZBDongle-P or ZBDongle-E).
- Built to Last: Gold-plated probes, UV-resistant casing, and a CR2477 battery with a lifespan of up to 5+ years.
How it Protects Your Home
- Spot Detection: Place the sensor under sinks, valves, boilers, or washing machines to catch puddles instantly.
- Line Detection: Run the WLDC200 along pipes, behind appliances, or around water heaters to uncover leaks anywhere along the route.
- Automation Ready: Trigger sirens, close smart valves, or turn off pumps and outlets immediately upon water detection.
Installation Tips for Best Results:
- Place the sensor at the lowest point in the risk area; route the WLDC200 along pipes and around appliances.
- Test by applying a wet cloth to the probes/cable; create a scene to trigger the Zigbee hub alarm and send notifications.
- Ensure adequate Zigbee coverage between the sensor, cable route, and the hub.
Compatibility
- Zigbee 3.0 Hubs: SONOFF NSPanel Pro, SONOFF iHost, ZB Bridge / ZB Bridge-P / ZB Bridge-U, SmartThings Hub V3
- Home Assistant: ZHA or Zigbee2MQTT (requires a Zigbee dongle, e.g., SONOFF ZBDongle-P/E)
Technical Specifications SONOFF SNZB-05P:
- Model: SNZB-05P
- Wireless: Zigbee 3.0; communication distance up to 130 m (in open space)
- Detection: Elevated probe ($\geq$ 0.5 mm level), concave well for dripping; supports serially connected detection cables
- Power Supply: CR2477 coin cell battery, lifespan up to 5+ years
- Materials: PC+ABS casing, UV-resistant; gold-plated probes
- Operating Temperature/Humidity: -10 °C to 60 °C, 0–100 % RH
- Dimensions: 48 × 48 × 21.6 mm
*Some cloud features (e.g., advanced notifications) may require an eWeLink Advanced subscription. The cable length can be extended by chaining multiple WLDC200 segments.
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