Ecowitt WH51 Wireless Soil Moisture Sensor, 8 Channel

Add the WH51 sensor to the Ecowitt WiFi gateway or weather station to add soil moisture readings to you weather data. Upload data to the Ecowitt network to view a history of soil data. 

For details on which weather products support the WH51 soil moisture sensor, click here to view the latest Ecowitt sensor matrix.

Up to 8 soil sensor readings are available to view in the App, or online via Ecowitt.net and in the 3rd party websites that support this sensor types. The MetOffice WoW service now supports the first sensor of this type (channel 1).

Features

• Measures soil moisture
• Configure for use with an Ecowitt gateway or weather stations
• Choice of two frequencies, 868MHz UK / European frequency and 433MHz for international use
• View readings directly on the phone/tablet App
• Supports up to 8 soil sensors. Each new sensor will be recognised as a new channel according to the power-on sequence. Please don't forget to label the channel on each sensor for distinction
• Works with WH0291 Display Console (sold separately) 
  
• Upload data to the Ecowitt weather server to view history graphs and download the date from the website
  

Important Tip:

1. Do not push the sensor into stoney or rocky soil. If the soil is too hard and dry, the sensor can easily be damaged.
2. Design for testing soil ONLY.
3. It is recommended to totally insert the sensor into the soil and keep it in place for 2 to 3 minutes to get an accurate reading.

• 1 x Soil Moisture Sensor
• Manual via electronic delivery

Technical information for the WH51 soil moisture sensor. 

• Moisture Range:0~100%; Resolution: 1%
• 0%AD setting range:70~200; Initial value:70
• 100%AD setting range:0%AD+10~1000; Initial value:500
• Transmission distance in open field: 100m (300 feet)
• Choice of two frequencies, 868MHz UK / European frequency and 433MHz for use with WS6006 4G station or Oceania region
• Sensor reporting interval: 70 seconds
  
• Power: 1 x AA LR6 Alkaline battery

A copy of the WH51 Soil Moisture sensor manual is available by clicking here.

Important Tip:

1. Do not push the sensor into stoney or rocky soil. If the soil is too hard and dry, the sensor can easily be damaged.
2. Design for testing soil ONLY.
3. It is recommended to totally insert the sensor into the soil and keep it in place for 2 to 3 minutes to get an accurate reading.

2 year warranty from date of purchase from May 2025, 1 year on purchases before this date - return to supplier. Batteries are excluded from warranties as they are classed as a consumable item.

See our terms and conditions for full details of our warranty details.