COD Analyzer for the Rough Stuff

LAR’s COD analyzer QuickCODultra™ is the most reliable measurement system for the roughest wastewater applications. Due to an unrivaled injection and oxidation technique, the QuickCODultra easily handles sticky, fatty, salty, and high-particle samples unlike other COD analyzers without the need of any hazardous chemicals.

Features and Benefits

  • Measurement range: 10 – 150 mg/l, 100 – 2,000 mg/l, 500 – 5,000 mg/l, 1,000 – 8,000 mg/l, 20,000 – 250,000 mg/l, further options available
  • Response time: 1 – 2 minutes
  • Measures the real oxygen demand
  • Highest combustion temperature (1,200°C) available on the market
  • Catalyst-free technique
  • Reliable measurement without reagents
  • No filtration necessary
  • No memory effects
  • Very low maintenance and operational costs



LAR’s chemical oxygen demand analyzer is suitable for a variety of applications and types of water:

  • Water Influent
  • Water Effluent
  • Discharge Control
  • Industrial WasteWater
  • De-Icing Water
  • Process Water
  • High Salt Concentrations


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

  • FlowSampler
  • Multi-stream measurement for up to 6 sample streams
  • Combination with TOC and TNb detection


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

  • IP54 (Standard)
  • NEMA 4X
  • ATEX Zone I
  • ATEX Zone II
  • IECEx

Online COD for every kind of water. Especially for the rough stuff.

LAR’s QuickCODultra is the ultimate online COD analyzer for the determination of chemical oxygen demand (COD) suitable even for the most difficult wastewater applications.


Exact Analysis. Clean, fast and accurate.

Exact Analysis. Clean, fast and accurate. In contrast to the common standard methods, which are time consuming and require dangerous reagents, the QuickCODultra uses the combustion method. It is fast, using the original idea considering the oxygen required for the oxidation of the organic components contained in the water. This method goes without any use of dangerous and etching substances so that a high operational safety is ensured. Another advantage of this method is that the measurement results are taken from the complete digestion and free from chloride interference.

The real COD. Even with changing sample matrixes.

The entire raw wastewater sample including all particles is directly injected into a furnace via the unique injection system. With our ULTRA high temperature method oxygen is used to digest all components. This demand is detected by a special oxygen detector so that the analyser truely measures the real oxygen demand. Even with applications with changing sample compositions the QuickCODultra reliably determines the COD.



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