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LaMotte SMART3 Colorimeter


  • The SMART3 Colorimeter comes with 6 sample tubes, a COD/UDV adapter, a USB AC adapter, instruction manual, and a USB cable
  • Menu-driven display
  • Over 75 pre-programmed calibrations and up to 25 user-entered tests

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The user-friendly LaMotte SMART3 Colorimeter is a direct reading colorimeter for complete on-site water analyses.
More than 75 pre-programmed tests optimized for LaMotte test reagent systems can run on this compact instrument.
A multi-LED optical system automatically selects the optimum wavelength for scanning water samples.  This system allows the water analyst to simply select the test and put in the water sample with a reagent. The microprocessor also allows the user to enter up to 25 tests for custom reagent systems.
Features include a USB port to interface with your PC, a six-button mechanical switch keypad, a self-diagnostics system, a power-saving automatic shut-off function, and factory-set calibration.
The colorimeter can hold up to 500 data points.
We have developed special tests for LaMotte's Smart3 colorimeter, including:

  • a high-range hydrogen peroxide test for applications in agriculture, animal husbandry, and hatcheries, where standard measuring ranges are insufficient;
  • a high-range chlorine dioxide test for concentrated chlorine dioxide solutions

For these tests, the Smart3 Colorimeter requires our programming; the Avalon Institute is glad to offer this service.

Additional information

LED/filter setup

428 nm, 525 nm, 568 nm, 635 nm


4 silicon photodiodes with integrated interference filters


160 x 100 backlit LCD, 20 x 6 line graphical display


-2 to 2 Absorbance Units (AU)


±0.001 AU at 1.0 AU


±0.005 AU at 1.0 AU

Sample Cell

25 mm dia. test tubes, 10 mm square cuvettes, 16 mm COD tubes


Lithium ion rechargeable battery, 3.7v, 2.5 x .75 inches, 1.7 oz. or USB computer cable or wall adapter

Battery Life

500 tests


Mini B


Factory set


6-button membrane switch


8.84 x 19.05 x 6.35 cm; 3.5 x 7.5 x 2.5 inches


362 g

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Osorno Enterprises Inc.
976 Elgin Avenue
Winnipeg MB R3E 1B4
+1 204 488-1538 (Phone)
+1 204 488-1566 (Fax)
Regular Hours of Operation
We are closed on December 24 - 28, 2020 and
December 31, 2020 - January 4, 2021
Monday - Friday: 9:00 - 17:00
Saturday - Sunday: Closed

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