Measure the Whole Range!


The measurement principle of the Watermark sensors is similar to that of the gypsum block system. Whereas the special sensor does not dissolve in the soil and has a more consistent distribution of pores so that more precise measurements are possible. The sensors are permanently buried in the soil and have an average life of 3 to 5 years. They do not require any maintenance during this time and are frostproof. A soil temperature sensor can be be used for temperature compensation. This method of soil moisture tension measurement may be used as a substitute for tensiometers if it is to be expected that the tensiometer will frequently fall dry at the installation site. The sensors may be connected either to a data logger or to the specific handheld for recording and reading out the data.



  • no maintenance
  • frostproof
  • good suitability for long term measurements
  • price efficient

Technical specifications

Measurement range:

0 ... 200 kpa

Operating temperature:

1 ... +80°C

Ceramic body:Ø 25 mm, Length 70 mm
Sensor length: 80 mm



Ordering Details:

Art.-Nr.:  112100               With temperature compensation
Art.-Nr.:  114501 Without temperature compensation; without rod
Art.-Nr.:  114502Without temperature compensation; rod length 75 cm
Art.-Nr.:  114503Without temperature compensation; rod length 120 cm



Principal Office Müncheberg

Umwelt-Geräte-Technik GmbH
Eberswalder Str. 58
15374 Müncheberg
Tel.: +49 (0) 33432 7559-0

Branch South

Umwelt-Geräte-Technik GmbH
Munich Airport Business Park
Lindberghstr. 7a
85399 Hallbergmoos
Tel.: +49 (0) 811 124478-0