Simplified Laboratory and Portable Instruments for Water & Wastewater Testing and Monitoring

Spectrophotometers, Colorimeters and Liquid Color Measurement

  • Testing Parameters: Chemical Oxygen Demand (COD), Chlorine, Ammoniacal Nitrogen, Iron, Nickel, Chromium, Nutrient, Silica, Hazen Color, ADMI and other water quality tests 

Laboratory and Portable Meters

  • Testing Parameters: pH, Dissolved Oxygen (DO), Conductivity, TDS, BOD, Turbidity and other water quality tests

Titration System

  • Testing Parameters: Chloride, Alkalinity, Hardness, Acidity, Sulfite, Volatile Acids and other water quality tests

Samplers and Flow Meters

Automate Flow Injection Analysis


DR 3900 Spectrophotometer without RFID

Product #: LPV440.99.00002


The proven technology you have come to expect from HACH just got better. Built with the future of water analysis in mind, the DR 3900 Spectrophotometer will give consistently accurate results in a simpler testing format.Would you like to use our Product Configurator tool to configure this product before adding it to your cart? If not, you may add it directly to your cart.

  • Guided Procedure

The DR 3900 guides you step-by-step through the testing procedure like a GPS, so you can get the accurate results you need every time.

  • Elimination of False Readings

Scratched, flawed, or dirty glassware becomes a non-issue when your machine takes 10 readings and eliminates outliers.

  • Flexible Connectivity

Built with 1 ethernet and 3 USB ports, the DR 3900 easily connects to your computer and is programmed to easily interface with Hach WIMS™ or any LIMS system.

Wavelength Range:

 320 to 1100 nm

Wavelength Accuracy:

 ± 1.5 nm (Wavelength range 340 to 900 nm)

Wavelength Reproducibility:

 ± 0.1 nm

Wavelength Resolution:

 1 nm

Wavelength Selection:

 Automatic, based on method selection

Data Storage:

 2000 measured values (result, date, time, sample-ID, user-ID)

Preprogrammed Methods:

 > 200

User Programs:


Dimensions Metric (H x W X D):

 151 mm x 350 mm x 255 mm


 9.26 lbs. (4.2 kg)

Available Tests

The following table lists available tests and overall ranges for the HACH DR 3900 Spectrophotometer. The ranges may represent more than one available test for the instrument.

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