The market leading SM300 offers outstanding performance in normal and saline soil conditions, and is stable across wide ranges of temperature and salinity.

Its construction uses industrial grade connectors and high specification materials throughout to produce a soil moisture sensor of outstanding quality. The built-in temperature sensor simplifies soil temperature measurement and achieves 0.5°C accuracy.


  • Soil moisture and temperature
  • Dependable accuracy ± 2.5 %
  • Good temperature and salinity stability
  • Easy data logger connection (0 - 1V DC)
  • Enhanced lightning protection


  • Soil science
  • Agriculture & Horticulture research
  • Irrigation

Soil Moisture Sensor SM300 - Product sheet