Toximeter NitriTox

NitriTox ™ Toximeter / Toxicity Analyzer

LAR’s toxicity analyzer NitriTox™ continually monitors water treatment plants for pollutants. Potential toxins in water are determined through the reaction of highly sensitive bacteria. The measurements follow at intervals of less than 5 minutes. Thus allowing enough time to introduce countermeasures after the occurance of pollution. What’s more, the NitriTox offers three warning levels, which can be individually set.

Features and Benefits

  • Measurement range: 0 – 100% Toxicity
  • Response time: 5 – 10 minutes (depending on application)
  • Toxicity monitoring
  • Self-regenerating culture of nitrifying bacteria
  • Highly sensitive
  • No memory effects
  • Low operational cost
  • High reproducibility
  • No purchase of test organisms required
  • According to DIN EN ISO 9509:2006
Toximeter NitriTox


LAR’s toxicity analyzer is suitable for the protection of wastewater treatment plants:

  • Water influent
  • Industrial wastewater


Using analyzer options, the measurement system is adaptable for every measurement challenge.

  • FlowSampler


For safe operation in hazardous areas, there are different protection housings available:

  • IP54 (Standard)

The bacteria are self-reproducing. In this case a huge advantage.

The toximeter NitriTox contains a bacteria culture which constantly and independently produces Biomass. This means that there is always enough bacteria for each new measurement. Furthermore, the risk of the fermenter being contaminated is removed because every water sample is tested with a fresh amount of bacteria.

Robust toxicity analyzer. Sensitive test organisms.

The bacteria are extremely sensitive to a multitude of toxins. Through their reaction to the harmful substances in the water sample, toxicity can be reliably determined. For example, a reaction already starts at a cyanide concentration of less than 0.10 mg/litre.

Reduced maintenance. No further purchases necessary.

Firstly, it is not necessary to purchase or externally cultivate test organisms, such as fish or daphnia. Secondly, the toxicity analyser is extremely low in maintenance because the bacteria mass constantly proliferates on its own.

Measurement principle of NitriTox



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LAR Process Analysers AG
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12057 Berlin

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