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HI-96725 Chlorine, Cyanuric Acid and pH Portable Photometer

HI-96725 Chlorine, Cyanuric Acid and pH Portable Photometer

Hanna HI-96725 Chlorine, Cyanuric Acid and pH Portable Photometer

HI-96725 Chlorine, Cyanuric Acid and pH Portable Photometer

Complete with cuvettes
2 year manufacturer warranty
In Stock
£379.75 (exc. VAT) £455.70 (inc. VAT)

Multi-parameter photometer measures Free & Total Chlorine, Cyanuric acid and pH of water samples.

HI-96725 Chlorine, Cyanuric Acid and pH Portable Photometer information

Hanna's extended description

Chlorine, Cyanuric Acid and pH Photometer for Legionella protection

The HI 96725 measures 4 parameters that are crucial in monitoring for preventive maintenance or disinfection.

Offering high levels of accuracy as well as being water resistant, portable and easy to use, it makes it the optimum solution for quick, efficient and economical measurement for Chlorine, Cyanuric Acid and pH.

Legionella species is the agent that causes human Legionnaires' disease as well as the lesser form, Pontiac Fever. Transmission is facilitated by the inhalation of mist droplets containing the Legionella bacteria.

Common sources of Legionella include cooling towers used in industrial cooling water systems as well as in large central air conditioning systems, domestic hot water systems, fountains, and similar disseminators that draw from a public water supply. Natural sources include freshwater ponds and creeks.

Since Legionella is especially harmful to people with weakened immune systems, it should be actively checked for in the water systems of hospitals and nursing homes.

Also available as a full kit HI-96725C - scroll to bottom of page for further details


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

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 -96725): 2 glass cuvettes, 9V battery
  • Full kit (HI-96725C): 2 glass cuvettes, 9V battery, attaché case, calibration check standards, cleaning cloths

NB: reagents ordered separately.

Reagents and Standards (available to buy separately)

  • HI-96701-11 Cal Check Standard Cuvettes (free Cl)
  • Hi-93701-01 Powder reagents for 100 tests (free Cl)
  • HI-93701-03 Powder reagents for 300 tests (free Cl)
  • HI-96710-11 CAL Check standard cuvettes (pH)
  • HI-93710-01 Reagents for 100 tests (pH)
  • HI-93710-03 Reagents for 300 tests (pH)
  • HI-96711-11 CAL Check standard cuvettes (total Cl)
  • HI-93711-01 Reagents for 100 tests (total Cl)
  • HI-93711-03 Reagents for 300 tests (total Cl)
  • HI-96722-11 CAL Check standard cuvettes (cyanuric acid)
  • HI-93722-01 Reagents for 100 tests (cyanuric acid)
  • HI-93722-03 Reagents for 300 tests (cyanuric acid)
  • Water Resistant – Can withstand temporary exposure to water, but should not be submerged or washed under running water.

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


    Specifications list


    Range Free Chlorine: 0.00 to 5.00 mg/L; Total Chlorine: 0.00 to 5.00 mg/L (ppm); Cyanuric Acid: 0 to 80 mg/L (ppm); pH: 6.5 to 8.5 pH
    Resolution Chlorine: 0.01 mg/L (ppm); Cyanuric Acid: 1 mg/L (ppm); pH: 0.1 pH
    Precision Chlorine: ±0.03 mg/L (ppm) ±3% of reading; Cyanuric Acid: ±1 mg/L (ppm) ±15% of reading; pH: ±0.1 pH
    Light Source Tungsten lamp
    Light Detector Silicon photocell with narrow band interference filter @ 525 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 measuring mode; after 1 hour of non-use in calibration mode
    Dimensions 192 x 102 x 67 mm (7.6 x 4 x 2.6”)
    Weight 290 g (10 oz.)
    Method Chlorine:Adaptation of the EPA recommended DPD method 330.5 ; Cyanuric Acid: Adaptation of the Turbidimetric method; pH: Phenol red method

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