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DataSonde 5X (DS5X)


The newest generation Series 5

multiparameter probes are designed

specially for measurement of water

quality in surface waters, ground water

and wastewater areas.


The DataSonde 5X (DS5X) allows for 

simultaneous measurement of up to 

15 water quality parameters.


7 additional sensor inputs enable you

to customise the probe for specific


The central brush motor cleans all sensors 

before each measurement and prevents

the buildup of biofilms.


The probe is ideal for long-term use, with minimal maintenance required.





  • Extremely low maintenance requirement due to the use of newest sensor technology (LDO) for oxygen measurement.
  • Unique sensor technology to determine chlorophyll a and cyanobacteria.
  • Versatile, since combined sensor technology enables up to 15 parameters to be detected at a time.
  • System integration possible through signal outputs of RS-232 and SDI-12.
  • Two year guarantee for the probes, including sensors.
  • Autonomous operation through internal datalogger (approx. 120,000 measurements).


Technical Specifications





Salinity 0-70 ±0.2
Temperature –5 ... +50 °C ±0.1 °C

Depth sensor 

0-200 m

±0.1 m


0 to 14 pH units

±0.2 units


-999 to 999mV

±20 mV

Self cleaning Turbidity sensor  0-3000 NTU <100 NTU: ±1 %
<400 NTU: ±3 %
<3000 NTU: ±5 %
Dissolved oxygen (Luminescence) LDO 0-60 mg/l ±0.1 mg/l
*exceeds max. natural concentration for values ≤ 8 mg/l
  ±0.2 mg/l
  for values > 8 mg/l and ≤ 20 mg/l
  ± 10% reading
  for values >20mg/l
Chlorophyll a Dyn. measurem. range ±3 % signal level equivalents
low sensitivity: 0.03-500 µg/l of 1ppb rhodamine WT dye or higher using a rhodamine sensor
med. sensitivity:  
0.03-50 µg/l  
high sensitivity: 0.03-5 µg/l  




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