USM – In-line COD/BOD/TOC/DOC Meter

Whether it is COD/BOD/TOC/DOC/TSS/UVs measurement for aeration management, chemical dosing or monitoring your UV disinfection performance, UV254 measurement will provide you with a fast, responsive and cost-effective means of measuring the organic content of your wastewater and optimising your process.

In common with all Smart Storm products, the USM has been designed with the user in mind. Its four-button keypad allows fast and simple programming. The intuitive menus guide the user through clearly worded choice fields and help the user to navigate to a successfully programmed unit in a matter of minutes.

UV254 COD/BOD/TOC/DOC/TSS Probe: small footprint probe with 39mm diameter. The probe can be configured with either a 2mm, 5mm, 20mm or 50mm path length depending upon the water quality and measurement requirements. Self-monitoring and fouling compensation ensures a long time between services. The stainless steel housing for the probe and flow cell is suited to use in dirty water. The flow cell has a special cleaning port for use with a jet wash system. Investigate trends and upsets with data storage that records every measurement.

ISE’s Probe: This is an analogue probe to measure pH, Ammonia, Fluoride, Potassium, Ammonium, Calcium, Nitrate, Chloride

Modern Control Unit: display results, trends and alarm data in real-time for multiple parameters simultaneously on a colour display control unit with a touch screen interface.

Data Review: 20-year data logger. See a graphical review of trend data. Easily transfer Excel-compatible CSV output files.

Advanced Optics and Electronics: long life pulsed UV LEDs ensure an extended service life and have none of the decay issues associated with mercury lamp analysers.


  • Low cost COD/ BOD/ TOC/ ISEs meter
  • Quick and simple user-friendly programming
  • Optional 20-year data logger
  • PC based reporting software
  • IP 66/4X wall mounted weatherproof enclosure
  • 3 programmable relays
  • 4-20mA output


  • Wastewater analysis
  • Clean water analysis
  • Chemical analysis
  • Aeration management
  • Aquaculture
  • Chemical dosing control



Instruction Manual

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