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Enabling better global research outcomes in soil, plant & environmental monitoring.


EnviroPro® sub-surface Soil Probes have been carefully engineered to be accurate, long-life, maintenance-free instruments suitable for all soil types. Their design employs clever techniques to correctly compensate moisture measurements for variations in salinity, as well as compensating moisture and salinity measurements for temperature variations, something not observed in any competitor probes.

  • Sensors located at 10cm vertical intervals
  • Easy field installation
  • SDI-12 V1.3 compliant
  • Interfaces to all SDI-12 compliant digital loggers
  • CE, RCM and FCC EMC compliant
  • Suitable for all crop root depths
  • Facilitates fertiliser optimisation
  • Designed and made in Australia
  • Set-and-forget maintenance free
  • Optional SDI-12 to RS-485 converter
  • Wide range 6 to 15 VDC auxiliary supply
  • Temperature-compensated measurements
  • Salinity-compensated moisture measurements
  • 5 year warranty
  • RoHS Compliant


Available in 40, 80, 120, and 160cm lengths.

EnviroPro probes have been laboratory tested for compliance to all regional regulatory rules and carry CE, RCM and FCC approvals.

They are manufactured to the highest standards and are fully encapsulated to ensure maximum immunity to environmental degradation. Each probe is individually calibrated at the factory and will consistently provide reliable and repeatable data, year after year.

All of the EnviroPro range provide sensors located at 10cm intervals, and are compatible with any SDI-12 compliant logger. The communication interface may be changed to a CMOS output, either by the user, or at the factory. Other interfaces, like RS485 have been adapted, which may suit your application.

The unique EnviroPro® sub-surface Soil Probes can, depending on the model, measure moisture, temperature and salinity in one robust unit for economical and continuous monitoring and never need field re-calibration.

Applications include turf, trees, flowers, vegetables, vines, cane fields, grains and dry-land crops, and many other plantations,

Other applications include composting, mining, environmental monitoring and scientific research.