Colorimetry, Turbidity, and Spectrophotometry

Meet your water and wastewater analysis needs with our colorimetry, turbidity and spectrophotometry meters.

You can choose from 134 preprogrammed methods to measure the concentrations of sample components with our colorimetry meters. These portable meters can go with you anywhere.


Take your portable turbidity meter to the source for on-site measuring. Our turbidity meters feature white and infrared light sources allowing you to meet regulatory methods. 


Achieve simple and efficient water and wastewater analysis with our UV-Vis and Vis spectrophotometers. These meters include over 260 preprogrammed methods using common reagent chemistries making them the ideal instruments to include in your laboratory.

Orion™ 24mm Round Vials

Catalog: AC2V24

Use Thermo Scientific™ Orion™ 24mm Round Vials with a variety of Orion colorimeters and spectrophotometers.

Orion™ AQ3070 AQUAfast™ Chlorine Meter

Catalog: Multiple catalog numbers exist

Conduct free and total chlorine testing for EPA reporting over the range of 0 to 2mg/L with this meter.

Orion™ AQ3700 AQUAfast™ Colorimeter

Catalog: Multiple catalog numbers exist

Handle all testing needs with a broad range of preprogrammed methods offered by the Thermo Scientific™ Orion™ AQ3700 AQUAfast™ Colorimeter.

Orion™ AQ4500 Turbidimeter

Catalog: Multiple catalog numbers exist

Use advanced features not available on any other benchtop or portable turbidimeter.

Orion™ AQUAfast™ AQ2040 COD Colorimeter

Catalog: AQ2040

Measure water quality quickly and accurately with the Thermo Scientific™ Orion™ AQUAfast™ AQ2040 COD Colorimeter.

Orion™ AQUAfast™ AQ3010 Turbidity Meter

Catalog: AQ3010

Generate an accurate turbidity reading in seconds with this simple yet powerful turbidity meter that offers an impressive array of features.

Orion™ AQUAfast™ AQ4000 Colorimeter and Accessories

Catalog: Multiple catalog numbers exist

Store up to 189 pre-programmed methods and record 100 data points in the field with a time and date stamp using this colorimeter and accessories.

Orion™ AQUAfast™ COD165 Thermoreactor

Catalog: COD165

Conduct environmental and wastewater monitoring with this thermoreactor, which automatically detects incoming wall voltage and frequency.

Orion™ AQUAfast™ II Chemistries Test Kits

Catalog: Multiple catalog numbers exist

Use these convenient, rapidly dissolving tablets with Thermo Scientific™ Orion™ AQUAfast™ II colorimeters; they allow chemistry to be added to sample without reagent loss.

Orion™ AQUAfast™ IV Chemistry Reagents

Catalog: Multiple catalog numbers exist

Minimize the risks of inaccurate measurement and contamination with Thermo Scientific™ Orion™ AQUAfast™ IV Chemistry Reagents, which are contained in self-filling vials.

Orion™ AQUAfast™ Tests and Liquid Reagents

Catalog: Multiple catalog numbers exist

Choose from various measurement ranges with Thermo Scientific™ Orion™ AQUAfast™ Tests and Liquid Reagents.

Orion™ AquaMate 7000 Vis Spectrophotometers

Catalog: AQ7000

Choose the accuracy, dependability and ease of use of the Thermo Scientific™ Orion™ AquaMate 7000 Vis Spectrophotometer to optimize your water and wastewater testing.

Orion™ AquaMate 8000 UV-Vis Spectrophotometer

Catalog: AQ8000

Equip your lab with a UV-Vis spectrophotometer with 260 preprogrammed methods for ion concentration results from absorbance plus wavelength scanning and custom method…

Orion™ AquaMate™ Cell Holders

Catalog: Multiple catalog numbers exist

Use Thermo Scientific™ Orion™ AquaMate™ Cell Holders with AquaMate™ 8000 UV-Vis and AquaMate™ 7000 Vis spectrophotometers.

Orion™ AquaMate™ Methods, USB Memory Stick

Catalog: AQ0USB

Utilize over 260 pre-programmed methods included in this USB memory stick; compatible with several leading brands of reagents.