Thermo Orion AQ4000 Colorimeter

The Thermo Orion AQ4000 colorimeter stores up to 189 pre-programmed methods and can record 100 data points in the field with a time and date stamp.


  • Auto-ID and pre-programmed methods ensure error-free readings
  • Up to 12 data points can be used to define a custom method, and a maximum of 10 methods can be stored in the memory
  • New methods can be easily downloaded
List Price $1,568.00
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The Thermo Orion AQ4000 measures common colorimetric water and wastewater parameters. The Auto-ID feature automatically recognizes the test and initiates measurement.

The Thermo Orion AQ4000 is waterproof to IP67 standards. Users can customize a calibration and create a completely custom method. Up to 12 data points can be used to define a custom method, and a maximum of ten methods can be stored in the colorimeters memory.

Selectable measurement units include concentration, absorbance or percent transmittance. Datalog 100 points in the field with a time and date tag, then download to a printer or computer in the lab. The AQ4000 carries a two-year warranty.

Note: Reagent kits are sold separately

  • Wavelength (nm) 420, 520, 580, 610
  • Wavelength Accuracy 2 nm
  • Wavelength Selection Automatic
  • Photometric Linearity 0.002 A (0-1 A)
  • Photometric Reproducibility 0.005 A (0-1 A)
  • Photometric Accuracy 0.005A @ 1.0 ABS Nominal
  • Photometric Range 0 2 A
  • Stray Light< 1.0% at 400 nm
  • Source Lamp Light Emitting Diode (LED)
  • Detector Photodiode
  • Bandwidth 10 2 nm
  • (1) AQ4000 meter
  • (4) AA batteries
  • (1) 16mm vial
  • (1) 16mm vial adapter
  • (1) 13mm vial adapter
  • (1) Field case
  • (1) User guide with test methods
  • (1) Tablet tampering stir rod
  • (1) Vial cleaning brush
Questions & Answers
Can I transfer data from my Colorimeter?
Yes, the AQ4000 Colorimeter can transfer data via the optional RS232 cable (available under the Accessories tab) and can store up to 100 data points in the memory.
How many vials does the AQ4000 colorimeter come with?
The Thermo Orion AQ4000 colorimeter comes with one 16mm vial, as well as an adaptor for 16mm and 13mm vials. Additional vials in 16mm or 24 mm are available under the Accessories tab.
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Orion AQ4000 colorimeter with carrying case
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