Geotech Mastehead


Water Quality Equipment

Colorimeters & Photometers

Hach DR 900 Handheld Colorimeter

The hand-held DR 900 allows quick and easy access to your most-used testing methods. This colorimeter is waterproof, dustproof and field durable. With an intuitive user interface, easy data transfer abilities, and the ability to test up to 90 of the most commonly tested water methods, the DR 900 makes water testing in harsh field environments a little less challenging.

  • Your Favorites at Your Fingertips
    Save time by storing your most standard methods for quick access in less than 4 clicks.
  • Field Ready in Every Way Possible
    This hand-held, rugged colorimeter is waterproof and dustproof.
    Drop tested and shock resistant for greater quality assurance.
  • Intuitive User Interface
    Improved user interface allows quick selections and easier testing.
  • Simple Data Communication
    Stores data for up to 500 tests, and comes with a USB port for easily downloading or transferring information.
  • Satisfies Your Core Testing Needs
    A single handheld instrument provides access to 90 of the most common parameters.

Call 1-800-833-7958

Hach DR 900 Colorimeter Specifications
Hach DR 900 Colorimeter User Manual

Thermo Scientific Orion AQUAfast IV AQ4000 Field Colorimeter

Thermo Scientific Orion AQUAfast IV® AQ4000 Portable Field Colorimeter

The Orion AQUAfast IV® AQ4000 multi-wavelength colorimeter stores up to 189 pre-programmed methods. A simple upload procedure updates the colorimeter with the most current programs. The upload keeps the AQ4000 always current.

The Orion AQ4000 features Auto-ID, which when used with Orion Auto-Test cuvettes, automatically identifies the species to be measured, selects the method, wavelength and reaction timer. The user never needs to push a button! The Auto-ID ensures the reagent is matched to the method.

This rugged and attractive unit is waterproof to IP67 standards. It is so advanced that a user can create a custom method and customize calibration. Up to 5 data points can be used to define a custom method. Ten custom methods can be stored in the colorimeter's memory. The simple interface steps a user through setup and measurement.

Call 1-800-833-7958

Thermo Orion AQUAfast IV® AQ4000 Specifications
Thermo Orion AQUAfast IV® AQ4000 Instruction Manual

LaMotte Smart 3 Colorimeter

LaMotte SMART3 Colorimeter®

The compact SMART3 Colorimeter® is ideal for water analysis in the field or in the lab. Easy to use software allows the analyst to choose a test factor from over 75 preprogrammed calibrations for LaMotte reagent systems. The reacted sample is always scanned at the optimum
wavelength which is automatically selected from the multiple LED optical system and the test result is presented on the large, backlit display..

  • Large graphical liquid crystal display
  • Simple, menu-driven operation
  • Alphabetical test selection
  • Pre-programmed tests
  • Lithium-ion rechargeable battery or computer /wall adapter
  • IP67 Waterproof
  • Data logger for 500 data points
  • 25 User tests
  • Backlit display
  • Auto-off
  • USB port
  • European CE mark
  • Superior narrow band-width interference filters
  • Super Twist Backlit LCD display for improved readability
  • Optional software for data storage and manipulation
  • Includes: Colorimeter, 6 sample tubes, COD/UDV adapter, USB wall/computer adapter, USB cable, Quick Start Guide, manual.

Call 1-800-833-7958

LaMotte SMART3 Colorimeter Specifications
LaMotte SMART3 Colorimeter Operator's Manual

LaMotte ColorQ

LaMotte ColorQ DW Photometer

ColorQ DW Photometer kit (Code 2059) is the ultimate portable on-site, hand-held photometer for testing drinking water.

  • The large digital display eliminates the guesswork with traditional color matching methods.
  • Measures 7 factors important to the drinking water professional including:
    1. Hardness
    2. pH
    3. Iron
    4. Nitrate
    5. Free Chlorine
    6. Total Chlorine
    7. Sulfide
  • Kit #2059 includes the ColorQ DW photometer, testing solutions, illustrated instructions and a sturdy carrying case.
  • Easy to use
  • Clear digital display in ppm
  • No guesswork with a comparative chart

Call 1-800-833-7958

LaMotte ColorQ DW Photometer Specifications
LaMotte ColorQ DW Photometer Manual

YSI 9500 Photometer
YSI 9500 Photometer
YSI 9300 Photometer
YSI 9300 Photometer

YSI 9300 & 9500 Photometers

YSI’s new line of photometers includes the Model 9300 and 9500. Eliminate sample preservation by taking your portable, waterproof instruments to the field to perform the analysis on-site. All reagents are safe and easy to use.

Selecting the desired test has never been easier. Simply navigate among the list of available tests on the screen of the instruments to choose your test and say “OK”. The instrument will then walk you through the steps to complete the test. Simple. Convenient. Accurate.

Models 9300 and 9500:

  • Direct-reading concentrations with automatic setup
  • Waterproof; IP67 (floats)
  • Large backlit graphic display
  • Unique sample tube holder accommodates
    various diameters
  • On-screen instructions
  • Multiple languages (English, French, German, Spanish, Italian)
  • 100+ test choices on the photometer display

Model 9500 only:

  • Waterproof USB connection
  • Power via USB port
  • Internal Memory - 500 sample sets
  • User-Selectable Options: test units, sample number, dilution factors

Call 1-800-833-7958

YSI 9300 & 9500 Photometer Specifications
YSI 9300 Photometer Instructions
YSI 9500 Photometer Instructions



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