HI97711 Portable Photometer

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Product Specifications

Brand Name Hanna Instruments
Country of Origin USA
Range (all methods) 0.00 to 5.00 mg/L (as CI₂)
Resolution (all methods) 0.01 mg/L
Accuracy @ 25⁰C ±0.03 mg/L ±3% of reading at 25⁰C
Method Adaptation of the EPA DPD method 330.5
Display 128 x 64 pixel B/W LCD with backlight
Battery type / Life Alkaline 1.5 V AA (3) / > 800 measurements (without backlight)
Dimensions 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0″)
Weight 380 g (13.4 oz.)



Product Details
The HI97711 portable photometer features an innovative optical system that provides superior performance in terms of accuracy, repeatability, and measurement time. This waterproof meter is extremely user friendly, with a tutorial mode that walks the user through a measurement graphically, step by step. The use of a backlit dot matrix LED enables the use of virtual keys, making meter operation very intuitive.

• CE European Directives


Company Profile

Hanna takes pride in each and every product that they create. Read more about Hanna Instruments.

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Advanced Optical System

  • LED that generates no heat
  • 8 nm narrow band interference filter that is accurate to ±1 nm and offers 25% increase in light efficiency.
  • Reference detector that modulates the voltage to LED for consistent light output.
  • A concave focusing lens that reduces errors from imperfections in the cuvette.


High Efficiency Light Source
• LED light sources offer superior performance compared to tungsten lamps. LEDs have a much higher luminous efficiency, providing more light while using less power. They also produce little heat, which could otherwise affect electronic stability. LEDs are available in a wide array of wavelengths, whereas tungsten lamps have poor blue/violet light output.

High Quality Filters

  • Improved optical filters ensure greater wavelength accuracy and allow a brighter, stronger signal to be received. The end result is higher measurement stability and less wavelength error


Stable Light Source
• The internal reference system of the these photometers compensates for any drifts due to power fluctuations or ambient temperature changes. With a stable source of light the readings are fast and stable between your blank (zero) measurement and sample measurement.


Greater Light Yield

  • A focusing lens collects all of the light that exits the cuvette, reducing errors from imperfections and scratches that may be present in the glass. The use of the convex lens reduces the need for indexing cuvettes.

CE European Directives


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HI97711 Portable Photometer