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Home  >  pH Meters and Water Quality Products > Colorimetry > Colorimeters

Colorimeters

Colorimeters

A colorimeter uses a light source of a particular wavelength, a color-changing, colorimetry reagent, and a light detector to determine the concentration of a particular substance, usually in an aqueous or water-based sample. After mixing the sample with a specific color-changing reagent, the sample is place within the sample chamber of the colorimeter, where light of a specific wavelength is passed through it. The desired substance’s concentration measurement will react with the reagent to change the color of the sample. The concentration of the parameter is proportionate to color change intensity. Since different chemical substances absorb different visual light frequencies, the detector can determine the absorbance of the light passed through the sample based on the intensity of the sample color. A colorimeter is commonly used to test the concentration of disinfectants like chlorine used in drinking water, pool and spa applications, industrial wastewater plants, paper manufacturing, and other industries. A colorimeter can be a single-parameter, multi-parameter. The colorimeter can vary the visible light wavelength to measure a variety of parameters like fluoride, nitrate, nitrite, sulfate, phosphorous and others.
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Representative photo only Hach DR 870 Colorimeter

Hach DR/870 Colorimeter

Product Type Color/Gloss Meters,Display LCD,Waterproof Yes
EW-99573-00
In stock.
$1,024.00 USD/EACH

Qty:
Representative photo only Oakton C 301 colorimeter pH free and total chlorine

Oakton C-301 colorimeter; pH, free and total chlorine.

Product Type Color/Gloss Meters,Display LCD,CE Compliance Yes
EW-35645-30
In stock.
$426.00 USD/EACH

Qty:
EW-35645-20 Oakton<small><sup>&reg;</sup></small> C-201 colorimeter; free and total chlorine.

Oakton C-201 colorimeter; free and total chlorine.

Product Type Color/Gloss Meters,Display LCD,CE Compliance Yes
EW-35645-20
In stock.
$386.00 USD/EACH

Qty:
Representative photo only LaMotte Single Test Colorimeter Kit Chlorine free and total in liquid form

LaMotte Single Test Colorimeter Kit, Chlorine free and total in liquid form

Product Type Color/Gloss Meters,Display LCD,CE Compliance Yes
EW-99562-12
Usually ships in 5 days.
$369.00 USD/EACH

Qty:
EW-99599-00 Orbeco-Hellige MC500<small><sup>&#153;</sup></small> multiparameter colorimeter

Orbeco-Hellige MC500 multiparameter colorimeter

Product Type Color/Gloss Meters,Display graphic display,Output IR interface for data transfer, RJ45 connector for internet updates
EW-99599-00
Usually ships in 7 days.
$1,050.00 USD/EACH

Qty:
EW-99561-30 HF scientific Chlorine Pocket Colorimeter

HF scientific Chlorine Pocket Colorimeter

Product Type Color/Gloss Meters,Display LCD,Waterproof Yes
EW-99561-30
Usually ships in 13 days.
$399.00 USD/EACH

Qty:
EW-99565-08 LaMotte Multiwavelength Colorimeter, 100 to 240 VAC

LaMotte Multiwavelength Colorimeter, 100 to 240 VAC

Product Type Color/Gloss Meters,Display LCD,Output USB
EW-99565-08
Usually ships in 7 days.
$999.00 USD/EACH

Qty:
Representative photo only Oakton C 105 colorimeter for ozone

Oakton C-105 colorimeter; for ozone

Product Type Color/Gloss Meters,Display LCD,CE Compliance Yes
EW-35645-15
Call 1-888-358-4705 for availability.
$337.00 USD/EACH

Qty:
EW-99562-10 LaMotte Single Test Colorimeter

LaMotte Single Test Colorimeter Kit; Chlorine free and total in tablet form

Product Type Color/Gloss Meters,Display LCD,CE Compliance Yes
EW-99562-10
Usually ships in 8 days.
$369.00 USD/EACH

Qty:
EW-99570-05 THERMO AQ3070 FREE AND TOTAL CHLORINE COLORIMETER

Thermo Scientific AQ3070 Free and Total Chlorine Colorimeter

Product Type Single wavelength colorimeter,Display LED,CE Compliance Yes
EW-99570-05
Usually ships in 8 days or sooner.
$386.00 USD/EACH

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Representative photo only Oakton C 401 colorimeter pH cyanuric acid free and total chlorine

Oakton C-401 colorimeter; pH, cyanuric acid, free and total chlorine.

Product Type Color/Gloss Meters,Display LCD,CE Compliance Yes
EW-35645-40
Call 1-888-358-4705 for availability.
$452.00 USD/EACH

Qty:
Representative photo only Orbeco Hellige SC400 Colorimeter Manganese LR

Orbeco-Hellige SC400 Colorimeter, Manganese LR

Product Type Color/Gloss Meters,Display LCD,Waterproof Yes
EW-99561-58
Usually ships in 5 days.
$385.00 USD/EACH

Qty:
Representative photo only Oakton C 103 colorimeter for chlorine dioxide

Oakton C-103 colorimeter; for chlorine dioxide

Product Type Color/Gloss Meters,Display LCD,CE Compliance Yes
EW-35645-13
Call 1-888-358-4705 for availability.
$340.00 USD/EACH

Qty:
EW-99561-76 SC450 COLORIMETER

Orbeco-Hellige SC450 Colorimeter, Free and Total Chlorine Kit

Product Type Single Wavelength Colorimeter,CE Compliance Yes,Datalogging 16 data sets
EW-99561-76
Usually ships in 6 days.
$379.00 USD/EACH

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EW-99561-89 SC450 COLORIMETER

Orbeco-Hellige SC450 Colorimeter, Manganese (high) Kit

Product Type Single Wavelength Colorimeter,CE Compliance Yes,Datalogging 16 data sets
EW-99561-89
Usually ships in 6 days.
$394.00 USD/EACH

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