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soil analyzer / temperature / water content / portable
ECH2O 5TM Decagon Devices, Inc.



  • Measured entity:

    for soil

  • Measured value:

    temperature, water content

  • Configuration:


  • Other characteristics:



Temperature integrated with soil moisture
The 5TM delivers temperature, measured by an onboard thermistor, along with accurate volumetric water content.

Engineered for accuracy
The 5TM determines volumetric water content (VWC) by measuring the dielectric constant of the soil (or other media) using capacitance/frequency domain technology. The sensor uses a 70 MHz frequency, which minimizes salinity and textural effects, making the 5TM accurate in most soils and soilless media. Factory calibrations are included for mineral soils, potting soils, rockwool, and perlite.

Easy installation
The 5TM’s small size makes it easy to install in the field and the greenhouse. This robust sensor can be pushed directly into undisturbed soil to ensure good accuracy.

Plug and read
Get straight to the data with the new ZL6 data logger. Just install the 5TM, plug it into the ZL6, set the clock and measurement intervals, and start logging data. No programming required.