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The HI-97752 is  an  auto-diagnostic  portable  photometer  that  benefits  from  Hanna’s years of experience as a manufacturer of analytical instruments. It has an advanced optical system that uses a Light Emitting Diode (LED) and a narrow band interference filter that allows for accurate and repeatable readings.


£490.50 (exc.VAT)
£588.60 (tax incl.)
Order now for 2 weeks delivery
Full Description Specification

Each photometer is delivered in a cardboard box and is supplied with:

  • Sample cuvette (2 pcs.)
  • Sample cuvette cap (2 pcs.)
  • Plastic stopper (2 pcs.)
  • 1.5V AA Alkaline batteries
  • Instrument quality certificate
  • Instruction manual

The optical system is sealed from outside dust, dirt and water. The meter uses an exclusive positive-locking system to ensure that the cuvettes are placed into the holder in the same position every time.

With the CAL Check™ functionality, users are able to validate the performance of the instrument at any time and apply a user calibration (if necessary). Hanna Instruments CAL Check cuvettes are made with NIST traceable standards.

The built-in tutorial mode guides users step-by-step through the measurement process. It includes all steps required for sample preparation, the required reagents and quantities.

The HI-97752 meter measures two important parameters in:

  • drinking water
  • surface water
  • ground water
  • wastewater
  • swimming pools

Calcium is a vital plant nutrient and helps to strengthen plant cell walls protecting against heat stress. The method for calcium is an adaptation of the Oxalate Method.

Magnesium is an essential nutrient and helps build a strong immune system. The method for magnesium is an adaptation of the Calmagite Method.

The HI-97752 photometer is a compact and versatile meter suitable for field or bench measurements, featuring a:

  • Sophisticated optical system
  • Meter validation using certified CAL Check cuvettes
  • Tutorial mode guides the user step-by-step
  • Auto logging
  • Waterproof IP67, floating case
  • GLP features

About Calcium and Magnesium

Calcium and magnesium both play important roles in the growth of plants. Calcium helps plant roots develop and increases the resistance and strength of plant tissues and stems. Magnesium is an indispensable mineral that helps in the production of chlorophyll, the light-absorbing green pigment that serves as an energy source for plants. It also increases vitamin concentrations and aids in uptake of phosphorus within the plant body.

Read More

Calcium Range0 to 400 mg/L (as Ca2+
Calcium Resolution1 mg/L
Calcium Accuracy±0.10 mg/L ±5% of reading
MethodAdaptation of the Oxalate Method
Magnesium Range0 to 150 mg/L (as Mg2+
Magnesium Resolution1 mg/L
Magnesium Accuracy±5 mg/L ±3% of reading
MethodAdaptation of the Calmagite method
Photometer/Colorimeter Light SourceLight emitting diode
Photometer/Colorimeter Light DetectorSilicon photocell with narrow band interference filter @ 420 nm
Bandpass Filter Bandwidth8 nm
Bandpass Filter Wavelength Accuracy±1.0 nm
Cuvette Typeround, 24.6 mm diameter (22 mm inside)
GLPDate, time of last calibration
Display128 x 64 pixel B/W LCD with backlight
Logging Typeautomatic logging
Logging Memory50 measurement
Battery Type/Life1.5V AA battery (3 pcs.) / > 800 measurements (without backlight)
Automatic Shut-OffAfter 15 minutes of inactivity (30 minutes before a READ measurement)
Environment0 to 50°C (32 to 122°F); relative humidity: 100% (IP 67, floating case)
Weight380g with batteries
Dimensions142.5 x 102.5 x 50.5 mm