Product - COD Measurement


Designed by water experts, for water experts. Hach provides a truly integrated system with spectrophotometers, chemistries, and methods that are developed, designed and manufactured to optimize your results. All spectrophotometers featured below offer time-saving automatic method detection and superior accuracy when using TNTplus™ reagents.


DR 5000™ UV-Vis Spectrophotometer

DR 5000™ UV-Vis Spectrophotometer

Top-of-the-line benchtop addresses immediate and future lab needs.

  • Maximum analysis flexibility with high speed wavelength scanning across the UV and visible spectrum
  • Accurate, drift-free measurement
  • Built-in UV methods (organics/nitrate)
  • More than 250 water analysis methods
  • Easy-to-use touch screen with intuitive operation
  • Most analysis flexibility with accessories designed to accommodate high-volume analysis and applications requiring greater sensitivity


DR3900 Benchtop VIS Spectrophotometer with RFID* Technology

DR 3900™ Benchtop Spectrophotometer

Prevent Measurement Errors...Simply.
Built with the future of water analysis in mind, the DR 3900 will give consistently accurate results in a simpler testing format.

  • On-screen, step by step testing procedures
  • Elimination of False Results with TNTplus chemistry
  • Hands Free Updates of chemistry lot information
  • Flexible Connectivity with 1 ethernet and 3 USB ports
  • RFID Sample Tracking system eliminates sample mix-ups

*RFID available only in US, Canada, Australia, and New Zealand. Customers in other countries should order LPV440.99.00002.