Hanna Total Chlorine Checker® Hanna Total Chlorine Checker® Hanna Total Chlorine Checker®

Hanna Total Chlorine Checker® HC

  • To measure total chlorine

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The Hanna Total Chlorine Checker® bridges the gap between simple chemical test kits and professional instrumentation.

 Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars.

The Hanna Total Chlorine Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.

  • Compact, Portable Design
  • Built-in Timer
  • One-Button Operation

The HI711 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure total chlorine. Chlorine is a popular disinfectant used in municipal water, fruits and vegetables, as well as equipment in the food and beverage industry. Though beneficial in destroying pathogens, levels greater than 4 parts per million (ppm) is harmful to humans and therefore, must be monitored.

Designed as a more accurate alternative to chemical test kits, the HI711 provides quick, accurate results in four easy steps:

How to use Hanna Checker Handheld Colorimeter

Features at-a-glance:

  • Easier to use and more accurate than chemical test kits
  • Dedicated to a single parameter
  • Small size, big convenience
  • Ideal for: Water Quality, Education, Pool and Spa
NameTotal Chlorine Checker® HC – HI711
Total Chlorine Range0.00 to 3.50 ppm
Total Chlorine Resolution0.01 ppm
Total Chlorine Accuracy±0.03 ppm ±3% of reading
Chlorine Methodadaptation of USEPA method 330.5, DPD method
Photometer/Colorimeter Light SourceLED @ 525 nm
Photometer/Colorimeter Light Detectorsilicon photocell
Battery Type/Life(1) 1.5V AAA
Automatic Shut-Offafter two minutes of non-use
Environment0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight64 g (2.25 oz.)
Dimensions81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”)