HI97771 Free & Total Chlorine Ultra High Range Photometer

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Portable Chlorine Meter/Analyzer

The HI97771 Free and Total Chlorine Ultra High Range Photometer combines accuracy and simplicity for chlorine measurements up to 500 ppm

The advanced optical system provides lab-quality accuracy, while its user-friendly design is easy for any user, making it the perfect photometer for your free and total chlorine (Cl2) measurements. The HI97771 checks Free Chlorine in water from 0.0 to 5.0 ppm and Total Chlorine up to 500 ppm. Designed to withstand knocks, drops and spills, the IP67 body helps ensures top performance in any environment.


  • No warm up time needed before taking a measurement
  • Guides you through setup, calibration, and testing with on-screen tutorials
  • Exclusive locking system ensure cuvettes are placed into the same position for accurate readings every time
  • Auto-off, to prolongs battery life, and a low battery warning
  • Automatically logs the last 50 measurements, which can be instantly recalled
  • Internal optics are sealed from dust, dirt and water (IP67 rating) and it floats
  • Supplied complete with sample cuvettes & caps (2), plastic stoppers, batteries, manual and quality certificate
  • Two-Year Warranty

High Range Chlorine Analyzer Specifications: 

  • Ranges:
    • Free Chlorine: 0.00 to 5.00 mg/L (ppm)
    • Total Chlorine: 0 to 500 mg/L (ppm)
  • Resolution:
    • Free: 0.01 mg/L (ppm)
    • Total: 1 mg/L (ppm)
  • Accuracy:
    • Free: ±0.03 mg/L ±3% of reading
    • Total: ±3 mg/L ±3% of reading
  • Logging: 50 readings (auto logging)
  • Power: Three Alkaline 1.5V AA Batteries (included)
  • Dimensions: 5.6" x 4.0" x 2.0" (143 x 103 x 51 mm)
  • Weight: 380 g (13.4 oz.)


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