The TH300 portable soil moisture probe is fast, accurate, easy to use, and works well in a wide variety of soils, including artificial potting medias. TH300 is the perfect tool for golf course and sports turf applications. In just a few seconds, soil water content can be measured, stored in memory, and later output to a PC. Irrigation requirements can now be determined based on fast and accurate soil moisture data.

The TH300 combines the HH2 hand held readout with the SM150 soil moisture sensor, which is based on the TH2O and ML3 Theta probe technology. Volumetric water content, ± 3 % is measured with little or no temperature or salinity effects and up to 1100 time-stamped readings can be stored in memory in the HH2. Data is output using an RS-232 cable supplied.


  • Simple to use
  • Completely portable
  • Durable and rugged
  • Plug and read
  • Soil moisture display
  • Monitoring
  • Soils • Media • Sand • Clay • Peat
  • Accurate and reliable
  • Records and averages
  • Power Efficient, 9 Volt Battery