Tensiomark

Monitoring of soil matric potential

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Measures soil water tension from pF 0 up to pF 7 (1 up to 10,000,000 hPa); maintenance-free and frost resistant

  • Matric potential sensor covers complete measuring range (pF 0-7; 1-10.000.000 hPa)
  • Maintenance-free and frost resistant
  • Unlimited measuring range (no measurement gaps in summer due to dehydration)
  • Fast response to moisture changes
  • Measurement of soil temperature (only in SDI-12-mode)
Measuring range: pF 0 to pF 7.0
Output signal (standard): Digital (SDI-12), optional analog
Operating voltage: 7 to 14 V, 12 V ideal
Power consumption:  
inactive 1.5 mA
active 45 to 50 mA
Dimensions: approx. 23 mm x 15 mm x 125 mm
Cable: 5 m; other lengths on request
Casing: Plastic

Babaeian, Ebrahim, Scott A. White, and Markus Tuller. "Field Evaluation of the Tensiomark Matric Potential Sensor for Hydraulic Soil Characterization." ASA, CSSA and SSSA International Annual Meetings (2019). ASA-CSSA-SSSA, 2019.

Dorau, Kristof, et al. "Climate change and redoximorphosis in a soil with stagnic properties." Catena 190 (2020): 104528.

Fäth, Julian, Julius Kunz, and Christof Kneisel. "Monitoring spatiotemporal soil moisture changes in the subsurface of forest sites using electrical resistivity tomography (ERT)." Journal of Forestry Research (2022): 1-14.

Moser-Reischl, Astrid, et al. "Growth patterns and effects of urban micro-climate on two physiologically contrasting urban tree species." Landscape and Urban Planning 183 (2019): 88-99.

Wald, Lukas, et al. "Smart Soil Information for Farmers (SoFI)." 42. GIL-Jahrestagung, Künstliche Intelligenz in der Agrar-und Ernährungswirtschaft (2022).

Frequently asked questions about "soil moisture"

Our experience of > 25 years with soil moisture sensors tells us so far that almost all inexpensive soil moisture sensors have serious disadvantages. These are either a lack of accuracy or a comparatively short service life. In the worst case, both come together. We have deliberately kept our range of sensors for water content and water tension very small because, in addition to high accuracy and long service life, which we have checked ourselves, we place more value on continuity and expertise than on erratic reactions to movements in the market. Nevertheless, we are in some continuous development process with the constant improvement of our self-manufactured sensors.

Other people would call the statement of our competitor "alternative facts" ;-)

We have been demonstrably manufacturing sensors with the full measuring range pF 0-7 since 2008 until today (> 6,000 units), among our long-standing customers are many well-known institutions.
Please feel free to ask for references.