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Eutech C401 Chlorine, pH & Cyanuric Acid Colorimeter

Eutech C401 Chlorine, pH & Cyanuric Acid Colorimeter
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Price: $710.00 + GST
Product ID : Eutech EC-C401
Manufacturer: Eutech
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Fuss-free and easy to use with no need for pre-calibration! Eutech's C401 waterproof colorimeter provides quality, highly-repeatable results in just three simple steps. Each colorimeter comes complete with reagants and sample vials in a rugged carrying case- convenient for testing on the field. The C401 measures Chlorine (Free and Total), Cyanuric Acid and pH.

Product Features:

  • Excellent repeatability, auto-ranging and easy to use: The meter ensures excellent repeatability, has auto-ranging capabilities while using only one-vial-one-sachet per test.
  • High Quality Reagents: The custom-formulated reagents provide excellent accuracy, repeatability and stability. They are conveniently packed for ease of use.
  • USEPA-approved DPD method*: Chlorine measurements are based on the USEPA-approved DPD method*.
  • Advanced Power Management: The meter is capable of measuring more than 3,000 tests using a single set of 4 ‘AAA’ alkaline batteries. Auto power-off activates after 10 minutes of non-use to conserve battery life.
  • Fuss-free Meter Operation: The meter is designed for easy operation. It allows one-time blanking for all parameters and ranges when measuring the same sample. The blanking value is stored in memory even if batteries are replaced. Furthermore, no calibration is needed for Chlorine and Cyanuric Acid. Most importantly, the meter is maintenance-free
  • Large Easy-to-read Display: The large screen features 4-digit 14-segment customized liquid crystal display (LCD) with mode indicators to guide meter use.
  • IP67 waterproof and lightweight: The lightweight meter has a waterproof IP67-rated housing. It even floats when accidentally dropped in water.
  • Swimming-pools & spas
  • Public utilities
  • Industrial Wastewater plants
  • Municipal water & Treated water
  • Water Conditioning Systems
  • Paper & Pulp mills

Product Specification

Chlorine, Free and Total0 to 1.99 ppm0.01 ppm ±0.02 ppm      
2.0 to 6.0 ppm0.1 ppm ±0.2 ppm
Cyanuric Acid 5 to 90 ppm1 ppm ±4 ppm       
pH5.9 to 8.2 pH0.1 pH ±0.1 pH      
Chlorine Dioxide 0 to 3.79 ppm0.01 ppm ±0.02 ppm        
3.8 to 11.4 ppm0.1 ppm ±0.2 ppm
Bromine0 to 4.49 ppm0.02 ppm ±0.03 ppm        
4.5 to 13.5 ppm0.2 ppm ±0.3 ppm
Ozone0 to 1.39 ppm0.01 ppm ±0.02 ppm        
1.4 to 4.1 ppm0.1 ppm ±0.2 ppm
Measurement Method Photometric
Light Source Light Emitting Diode (LED)
DetectorSilicon photodiode
Absorbance Range0 - 2.5 Abs
Photometric Precision±0.0015Abs
Automatic Range Selection0 - 1.99 ppm (Free & Total Chlorine)
2.0 - 6.0 ppm (Free & Total Chlorine)
5 - 90 ppm (Cyanuric Acid)
5.9 - 8.2 pH

0.01 ppm (0 - 1.99 ppm; Free & Total Chlorine)
0.1 ppm (2.0 - 6.0 ppm; Free & Total Chlorine)
0.1 pH (5.9 - 8.2 pH)
1 ppm (5 - 90 ppm; Cyanuric Acid)

Accuracy±0.02 ppm (0 – 1.99 ppm; Free & Total Chlorine)
±0.2 ppm (2.0 – 6.0 ppm; Free & Total Chlorine)
±0.1 pH (5.9 – 8.2 pH)
±4 ppm; Cyanuric Acid
Calibration PointsUser selectable; 1 point per colorimetric test
Display 4-digit 14-segments customized liquid crystal display with annunciators
Sample Cells Borosilicate glass with screw caps, fill line and indexing mark Height x Diameter : 51 x 25 mm
Sample Volume Required10 ml
Operating Temperature Range0 – 50°C
Operating Humidity Range0-90% RH non-condensing at 30°C
Power Supply4 ‘AAA’ alkaline batteries
Battery Life > 3000 tests
Electromagnetic EN 61326 Compliance (EMC)
Weight Instrument : 200g
Complete carrying case : 1.25kg
Dimensions Instrument :
6.8(W) x 15.5(L) x 4.6(H) cm
Carrying case : 16(W) x 35(L) x 12(H) cm