MK-III Soil Moisture Sensor


This sensor responds to changes in soil moisture. As the soil dries, the resistance measurement increases.


This soil moisture sensor is designed to be a permanent sensor and is made with high corrosion resistant stainless-steel electrodes. It will not dissolve over time and is not affected by freezing temperatures. It is extremely easy to install and requires no maintenance.

This item will not work on all stations and requires the appropriate expansion board. Contact if you are unsure.

Uses Include:

  • Irrigation Scheduling
  • Water Table Monitoring
  • Leak Detection
  • Agronomy Research
  • Environmental Monitoring

Product Features

  • Proven Stable Calibration
  • Range of 0 – 239 cb (kPa)
  • Fully Solid State
  • Will not dissolve
  • Not affected by freezing temperatures
  • Internally Compensated for Commonly Found Salinity Levels
  • Inexpensive
  • Easy to Install and Use
  • Compatible with AC or DC Devices (Specialized Circuit Required)
  • No Maintenance Required

Product Questions