Hanna Insturments HI-762 Ultra Low Range Free Chlorine Handheld Colorimeter, Checker®HC(with 25 tests)

Hanna InstrumentsSKU: HI-762

Sale price£64.40

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Hanna Insturments HI-762 Ultra Low Range Free Chlorine Handheld Colorimeter, Checker®HC

Chlorine is the most common water disinfectant and by monitoring chlorine regularly and accurately, serious health and safety risks can be avoided.

The Hanna Free Chlorine Ultra Low Range 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 Free Chlorine Ultra Low Range 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.

The contoured style of the HI-762 ultra-low range Free Chlorine Checker is designed to fit in the palm of your hand. The large LCD is easy to read and the auto shut-off feature ensures the battery life will not be drained if you forget to turn it off.


Ideal for

  • Swimming pools and spas
  • Fruit, vegetable and salad washing
  • Disinfection


Main Benefits

  • Testing is quick and easy
  • High precision results - more accurate than chemical test kits
  • Auto shut-off feature means the Checker cannot be left on by mistake
  • Fully portable, fitting easily into both palm and pocket


Supplied with

  • 2 sample cuvettes
  • Cuvette cap
  • Pack of Reagents x 25 tests
  • 1 x 1.5 AAA battery
  • Instructions

Range 0 to 500 ppb

Resolution 1 ppb

Accuracy @ 25°C ±4% of reading ±20ppb

Light Source LED @ 525 nm

Light Detector Silicon photocell

Environment 0 to 50°C; RH max 95% non-condensing

Battery Type (1) 1.5V AAA

Auto-off After 10 minutes of non-use

Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5")

Weight 64 g

Method adaptation of USEPA method 330.5, DPD method


Sku: HI-762

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