STELZNER® agricultural measurement systems

Measuring in soil and in liquids, with our MULTI ISE for determining individual nutrients and the Pockettester for pH, conductivity and temperature

Advisory kit, type III

Conductivity, activity

The new Multi 2000 integrates all the measuring possibilities of several meters into one instrument: it can take direct measurements of salt content, conductivity, temperature and pH value.
The activity of soils and substrata can also be determined with the Multi 2000 meter.
This activity corresponds to the dissolved total salt content (in grams of salt per litre). The meter measures directly in the plant canopy, the soil, or substrata (e.g. directly at the roots). This gives insight into the potential absorption of nutrient salts by plants while taking all soil characteristics into consideration (such as temperature, moisture and density). The scheduling of fertilization is simplified when periodic activity measurements are carried out. During crop development, you can monitor different soil layers for nutrient availability, long-term fertilizer attributes and deployed fertilizer concentration.

The electrical conductivity in a solution can be measured by switching into EC mode and attaching the corresponding temperature-compensated conductivity electrode. You can make a targeted calculation of your fertilizer use by factoring in the EC value of the water you are using. This is the basis for all crop processes that use irrigation-based fertilization, including surface fertilization, dam irrigation, drip irrigation, and also particularly for soil-free crops.

The new microprocessor-controlled Multi 2000 is also useful for providing a quick and reliable check of the pH value. You can use this meter to check the conductive slope (and functionality) of a pH electrode.

The pH piercing electrode made of glass come with multiple diaphragms.
Thus, measurements can be taken in solutions, substrata, natural soils or mineral wool. This type of device is innovative because it allows you to measure temperatures in the field. A temperature probe is integrated in the conductivity electrode. So the temperature is measured in the same place that the pH, activity and conductivity are being monitored (e.g. in the fertilizer solution or in the different potting depths). The temperature probes can be used either in solutions or in substrata. The technical manual includes instructions, guideline tables, usage tips, and the EC values of typical fertilizers.

30001300-M Advisory kit, type III € 654,50
(functionality similar to the PET 2000 KOMBI) Multi 2000 with four-wire carbon conductivity electrode and AM probe (25 cm) with mini-DIN 8-pin plug, six nitrate test strips, calibration solutions (1.4 mS/cm, 12.88 mS/cm and 111.8 mS/cm), beaker and spray bottle with deionized water, technical manual
30001201 MULTI 2000 € 535,50
Base unit without electrode
30001200 Advisory kit, type IX € 940,10
MULTI 2000 with pH glass insertion electrode, AM probe (25 cm) with DIN-plug, 4-wire carbon conductivity electrode, pH 4, pH 7, 1,4 mS/cm, 12,88 mS/cm and 111,8 mS/cm solutions, KCl refill solution, CaCI2 powder for analysis of soil solutions, piercing pin, nitrate test strips, beaker, spray bottle with deionised water
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Measurement range:

pH: 0 to 14
Activity: 0 to 2 g/l
Conductivity: 0 to 200 mS/cm


pH: 0.01
Activity: 0.1 g/l
Conductivity: 0.01 mS/cm

Precision: pH: ± 0.02
Activity: ± 0.2 g/l
Conductivity: ± 2 % 0 to 10 mS/cm
± 5% 10 to 200 mS/cm
Display: Liquid crystal display
Operating temperature: +5 to 45 °C
Powers supply: One nine-volt battery, size 6LR61
Protection degree: IP40
Dimensions and weight: 180 x 65 mm / 80 x 40/50 mm,
280 g
Dimensions and weight with case: 460 x 350 x 135 mm;
4.7 kg

PET 2000

The PET 2000 activity meter can measure the potential absorption of nutrient salts under the same conditions as the actual nutrient salt absorption through the roots. This means that the dissolved salt content is measured in the soil and... ...more Topseller

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