• manufactured bylogo small
  • small datalogger with Delmhorst gypsum block sensor for soil water potential measurement
  • built-in datalogger temperature
  • equipped with the connector for quick replacement of the weathered gypsum block sensor in the field
  • low maintenance, easy installation and set-up
  • large logging capacity and long battery lifetime
  • infrared wireless data access
  • Mini32 software support


Measuring intervals 10 min to 4 hrs
Memory capacity with measuring interval 1 hour ca 6 years
Battery lifetime with measuring interval 1 hour ca 4 years
Measuring range 0 to −1.44 MPa
Internal temperature accuracy ± 0.3 °C
Protection rating IP68
Size (diameter x length) 30 x 93 mm (without sensor)
Weight 97 g (without sensor)
Operating environment temperature −40 to 60 °C
Operating environment humidity 0 to 100%

Gypsum block sensor

Minikin S P 1 Delmhorst gypsum block sensor
  • made of gypsum cast around two concentric electrodes
  • absorbs or releases moisture from the soil, until its moisture content approaches equilibrium with the soil
  • ideal for irrigation purposes – measurement reflect how much of the water is available to plants, and not only volumetric water content

Quick junction connector

E MS Minikin S P 1 quick coupler connector croped
  • simple and quick replacement of the weathered gypsum block sensor in the field
  • no interruption of measurement due to service – replace and measure

Delmhorst conversion graph

Meter Readings

Mini32 software

Mini 32 overview
  • graphically oriented software intended for work with long time series
  • fast calculation of hourly, daily, montly values
  • fast brief statistics
  • built-in efficient commands for summation and min-max-average calculation


documentdocument 2 Datasheet
documentdocument 2 Battery replacement instructions


Compatible sensors