Product details
Ecowitt WH51L Soil Moisture Sensor
The Ecowitt WH51L is a wireless soil moisture sensor designed for accurate monitoring of soil moisture levels. Equipped with a 1-meter PVC probe and an LCD display, it provides real-time data to help optimise irrigation practices in gardens, farms, and greenhouses.
Features
- Deep Soil Monitoring: 1m/3.28ft PVC probe allows measurement of moisture at greater depths, up to approximately 80cm.
- LCD Display: Built-in screen displays real-time soil moisture readings for immediate feedback.
- Wireless Data Transmission: Transmits data every 70 seconds via Radio Frequency; in cases of significant changes, it switches to a 10-second transmission interval.
- Custom Calibration: Features 0%AD and 100%AD modes for manual calibration, ensuring accurate readings across different soil types.
- Long-Range Connectivity: Offers a transmission range of up to 100 meters in open areas, ensuring reliable communication with compatible devices.
- Multi-Channel Support: Compatible with Ecowitt gateways and consoles, supporting up to 8 channels for monitoring multiple zones.
- Weather-Resistant Design: Sensor probe is rated IP68, and the device housing is rated IP66, making it suitable for outdoor use.
- Compatibility: Works with Ecowitt gateways and display consoles.
- Data Management: When connected to Ecowitt gateways, data can be viewed on the WSView Plus app and uploaded to the Ecowitt Weather Server for historical analysis.
- Integration: Integrates with Home Assistant
Information
- A compatible Ecowitt gateway or display console is required
- The probe can be fully buried under soil, to a depth of about 80cm
- The probe is can break if pushed in to hard dry soil or stoney soil
- It will take several minutes for the sensor to give correct moisture reading
VIDEO
Coming Soon – Videos on installation, setup, configuration and using
FAQ
Compatible Devices
Please check the compatibility table to check which gateways and display consoles the sensor works with
Using Multiple WH51L Sensors
Yes, Ecowitt gateways and consoles support up to 8 WH51L sensors, each assigned to a separate channel. Channel names can be edited in the WS View Plus app or on Ecowitt.net for easy identification.
Understanding Custom Mode
Custom Mode allows you to manually calibrate the sensor’s 0%AD (dry) and 100%AD (wet) values for more accurate readings tailored to specific soil types. To enable
Viewing Soil Moisture Data Remotely
After pairing the WH51L with a compatible gateway and configuring Wi-Fi settings, you can:
- View real-time data on the WS View Plus app (requires the phone and gateway to be on the same network).
- Upload data to the Ecowitt Weather Server for remote access, historical data analysis, and graphing.
Does the sensor work with Home Assistant
Yes
Will the sensor work without connecting to a gateway
Yes, the built-in display will still give moisture readings
DOWNLOADS
Ecowitt Soil Mositure Sensor WH51L Manual
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