special SDI12-Sensors


 

special SDI12 soil probes

Measurement of soil water content, soil temperature and soil conductivity

Sensor Hydra Probe II - Stevenswater

range

oven dry to saturated sonditions
0,01 ... 1,5 S/m
-10 ... +65 °C

accuracy

± 3 % volumetric water (m3-m-3)
± 5 mS/m
± 0,1 °C
power supply 9-20 V DC
power use 30 mA
output signal SDI12
total length 124 mm
probe diamter 42 mm
probe lenght 57 mm

Sensor Vaisala CARBOCAP™

CO2 probe for soil/air applications

Sensor Vaisala CARBOCAP™

measure range:

GMM221
for high concentrations

0...2  %vol
0...3  %vol
0...5  %vol
0...10 %vol
0...20 %vol

measure range

GMM222
for lower concentrations

0...2000   ppmvol
0...3000   ppmvol
0...5000   ppmvol
0...7000   ppmvol
0...10000 ppmvol
accuracy by +25 °C ±[1,5 % v.Ew. + 2 % v. Mw]
temperature mistake, typ. -0,3 % v.Mw. / °C
pressure mistake, typ. +0,15 % v.Mw. / hPa
log term stability < ±5 % v.Ew. / 2 Jahre
lenght of probe

GMM221 = 109 mm

GMM222 = 155 mm

diamter of probe GMM221/222 = 18,5mm

further SDI12 probes by request:

  • soil temperature (PT1000-string)
  • Redox probe
  • pH-probe
  • YSI-pobe for water quality