Miniature tensiometer

Measurement of water tension in the laboratory

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Measures water tension in the humid range up to 850 hPa; especially useful for soil column and laboratory lysimeter applications due to small dimensions

  • Minor disturbance of soil
  • Fast response
  • Coated filter and shaft made of borosilicate glass
  • 90°-angle between the shaft and cable for better strain relief
  • Sensor easily exchangeable
Measuring range: up to 850 hPa
Operating voltage: 5-15 V
Filter length: ca. 13 mm
Shaft length: ca. 100 mm
Diameter: 6 mm
Cable length: 2 m; other lengths available on request

 

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.