Nitrate analyzer – Odysséo in situ probe

UV nitrate measurement in 20 seconds for effective nitrate monitoring on any type of water.
DTLI’s nitrate analyzer enables nitrate measurement as NO3– or NOx.

In situ nitrate analyzer

Measuring ranges:

  • 0 – 250 mg/L NO3 (0 – 50 mg/L N-NO3)
  • 0 – 1000 mg/L NO3 (0 – 200 mg/L N-NO3)

Quick results

Nitrate measurement in 20 seconds with no reagent needed.

Reliable long-term measurement

UV nitrate measurement technology.
Automated cleaning system and zero adjustment.

Functional measurement of dirty water

No filtration need.
Optic turbidity compensation

A nitrate analyzer (probe + transmitter) designed to be convenient in a day to day work environment

Rugged equipment

A robust conception suited for use in professionnal environment:

  • Solid cases
  • Resistant opening system
  • Display screen and mechanical keyboard can be used with gloves or with wet hands and are resistant to water splashes

Graphical display

  • Access of the measurement history as digital or graphical display.
  • Choose the display time range (hour / day / week / month / year)
  • Follow on-going measurement cycle.

Simple and convenient

Quick acces to main features:
  • Start a measurement
  • Stop on-going measurement cycle
  • Start / stop a cleaning cycle
  • Measurement history.
Easily measure any sample using a manual measurement through the sampling pump.

Rugged UV probe with fixation solution

UV probe with stainless steel casing, and suitable fixation system.

Mains power supply / 12V battery

  • Mains connection for a fixed installation
    The internal battery makes the system resilient to power outages.
  • Operation on 12V battery for use on an isolated site (autonomy: approximately 100 measurements).


  • Recording of measurements with date and time on a static memory.
  • Capacity of 10,000 measurements.
  • RS232 port for serial communication
  • Data transfer to PC via an RS232-USB converter, in a format compatible with spreadsheet software (Excel, LibreCalc, etc.)

A cost-efficient solution for nitrate monitoring based on UV measurement


Very low operating cost and reduced need for maintenance

  • No reagent for the measurement.
  • No need for calibration solution.
  • Automated cleaning system and zero adjustment.
  • Simple correlation curve setup from samples.

Equip your facility for a long time with analyzers built to last

In contrast with planned obsolescence, our devices are built to last, to be easily maintained and repaired when needed.
Make significant savings in money and time over the long term :


  • Product design and component sourcing driven by sustainability
  • Helpful and responsive support and maintenance service
  • 2 years manufacturer’s warranty

Contact our local partners

We work with partners worldwide to offer you a reliable service no matter where you are.
Let us know what you need and we will follow up with a custom quote from our local partner.

A nitrate analyzer designed for water treatment control through real-time nitrate monitoring.

River monitoring

  • Pollution control.
  • Alert stations.

Drinking water

  • Control of nitrate levels at the inlet of drinking water treatment plants
  • Mixture of different water sources
  • Denitrification control

Urban waste water

  • WWTP outlet monitoring before discharge in the natural environment.

Industrial effluents

  • Food industry : denitrication monitoring and control

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