Hanna Instruments

Scientific Equipment

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HI-96738 Chlorine Dioxide Portable Photometer

HI-96738 Chlorine Dioxide Portable Photometer

HI-96738 Chlorine Dioxide Portable Photometer

HI-96738 Chlorine Dioxide Portable Photometer

Complete with cuvettes
2 year manufacturer warranty
In Stock
£279.45 (exc. VAT) £335.34 (inc. VAT)

Chlorine Dioxide ion specific meter - supplied with 2 cuvettes and caps.

HI-96738 Chlorine Dioxide Portable Photometer information

Hanna's extended description

Photometer for Chlorine Dioxide

The HI 96738 meter measures the chlorine dioxide content in water samples in the 0.00 to 2.00 mg/L range.

Chlorine Dioxide is a highly effective, eco-friendly micro-biocide that carries and important regulatory approval from the UK Government for many of its uses.

Chlorine and bromine react rapidly with microbiological species and chemicals in water. This reactivity is both their strength and weakness. Since chemical reactions are usually the first to take place, only the small residual of the product remaining after the chemical reaction is completed is available for microbiological control.

Chlorine dioxide is a very safe and potent biocide. It is effective over a wide pH range in both hard and soft water and does not react with most other water treatment chemicals.

Key features

  • Clear display messages make the instrument quick and easy to operate.
  • The powerful Cal Check calibration function means that there is no need to return the instrument to the laboratory to check its efficiency. Samples can be checked and validation confirmed at the press of a button.
  • Positive locking system ensures the cuvette is located in the same position each and every time is it placed in the measurement cell.
  • Auto shut off feature turns meter off after 10 minutes of non-use to save battery life.
  • Fully water resistant
  • Clear easy to use function buttons
  • Direct readout of parameter measured
  • Calibration check solution available - HI 96738-11

Designed for precision

With the Hanna calibration check validation function, users can verify the performance of the meter quickly and easily at any time. Using Hanna NIST traceable standards, it takes just a few moments to check the accuracy of the instrument and to recalibrate as and when necessary.

All new instruments are factory calibrated at source and the electronic and optical design of the Hanna photometers minimises the need for frequent calibration. The Hanna calibration check further minimises the frequency with which instruments need to be returned to the calibration laboratory for full servicing.

Order information

  • Meter only (HI -96738): 2 glass cuvettes, 9V battery

NB: reagents ordered separately

Battery powered – Allows use away from a power source. Batteries are included with all battery operated products.

Water Resistant – Can withstand temporary exposure to water, but should not be submerged or washed under running water.


Specifications list


Range 0.00 to 2.00 mg/L (ppm)
Resolution 0.01 mg/L (ppm)
Precision ±0.1 mg/L ±5% of reading
Light Source Tungsten lamp
Light Detector Silicon photocell with narrow band interference filter @ 575 nm
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Power Supply (1) 9V battery
Auto-off After 10 minutes of non-use in measurement mode; after 1 hour of non-use in calibration mode; with last reading reminder.
Dimensions 192 x 102 x 67 mm (7.6 x 4 x 2.6”)
Weight 290 g (10 oz.)
Method Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th ed.; Chlorophenol Red Method.
Ordering Information HI-96738 is supplied with sample cuvettes (2) with caps, 9V battery, instrument quality certificate and instruction manual.
Reagents and Standards (sold separately) HI-96738-11 CAL CheckTM standard cuvettes; HI-93738-01 Reagent for 100 tests; HI-93738-03 Reagents for 300 tests
PLEASE NOTE: In some cases, samples may contain other parameters which may interfere with results
Interference may be caused by: Strong oxidants.

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