STELZNER® agricultural measurement systems

Aquaflex for HYDRO 2000

Determining the volumetric water content in the soil


Measurement of soil moisture according to the TDT principle (Time Domain Transmissionmetry) for measurements in the range of 0 to 100 vol. %, as a mean value over the length. The measuring tape is approx. 2 cm wide and either 100 or 300 cm long. Well suited for row crops with drip irrigation or for lawn irrigation.


The HYDRO 2000 is an inexpensive measuring device for professional use. It determines the volumetric water content in soil. The SMT 50 sensor works according to the FDR (frequency domain reflectory) principle. It delivers precise results in the relevant measuring range between 0 and 50 % water content by volume, with only slight influences from salinity and soil type. The cable and housing for the sensor are waterproof.

In addition to measuring soil moisture, the HYDRO 2000 can also measure the temperature of the soil. Thanks to its compact and robust design, this measuring device is maintenance-free and suitable for continuous operations.

The HYDRO 2000 can be optionally deliverd with a cable connection for connecting further volume sensors  and to handle additional measuring tasks.

30008093 Aquaflex 100 cm € 269,54
with plug for Hydro 2000, 2m cable
30008089 HYDRO 2000 € 220,15
Hydro 2000 with plug connection
30008094 Aquaflex 300 cm € 282,63
with plug for Hydro 2000, 2m cable
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adjustable, similar to SMT 100
 Power supply: 4 – 24 V
Accuracy: ± 3%
with temperature measurement at the housing
Resolution: ±0.1 vol.%
Display: Liquid crystal display
Power supply: One nine-volt battery,
    size 6LR61
Degree of protection: IP 40
Dimensions and weight: 125 x 78 x 45 mm, 190 g



Classic plug-in tensiometer

A tensiometer is used to measure suction tension. The porous cell of the tensiometer uses capillary action to transport water outwards into the drier soil. A negative pressure is then created within the closed pipe. This negative... ...more Topseller

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