Hanna Instruments Canada
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Contact Hanna: (800) 842-6629
Hanna Instruments Canada
Customer Support: (800) 842-6629

HI97105 Marine Master Multiparameter Photometer-kit


In stock

The HI97105 Marine Master Photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system combines lab-quality accuracy with user-friendly design for aquarium waterr quality testing needs. The HI97105 is designed to accurately determine pH, alkalinity, calcium, nitrate, nitrite, and phosphate levels in aquariums and marine biology applications.

  • No warm up time needed before taking a measurement.
  • Tutorial mode for easy step-by-step instructions.
  • CAL Check™ for performance verification and calibration.


Better Features for Better Testing

Let your photometer guide you through setup, calibration, and testing with on-screen tutorials and animations so you always know the next step. Simply access Tutorial Mode at any stage in the setup or measurement process with the dedicated help key.

The auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.

When the battery level is below 10%, a warning symbol will blink to indicate low battery condition. When low battery power may affect your results, the meter will shut down to avoid erroneous readings caused by low battery level.

Data Logging

Missed a measurement? No need to worry because your photometer will automatically log the last 50 measurements. The results can be viewed instantly using the Log Recall Menu.

CAL Check™ Validation

Hanna’s exclusive CAL Check™ feature provides a stress-free, straightforward way to ensure your photometer is working properly. Simply insert the certified CAL Check™ standards and let your meter guide you through validation. If your photometer is out of specification for any reason, simply calibrate to your standard.


Advanced Optical System

A Light Emitting Diode (LED) provides more light while using less power and a narrow band interference filter results in more accurate and repeatable readings.

Built Better

Designed to withstand the knocks, drops, and spills of real life, the new IP67 body ensures top performance in any environment. Internal optics are sealed from outside dust, dirt, and water. In addition, it floats, just in case you drop your meter in water. This photometer uses an exclusive positive‑locking system to ensure that the cuvettes are placed into the holder in the same position for accurate readings every time.

Portable Design

Made to fit comfortably in your hand for on-the-go testing or sit on a table for benchtop use, a backlit LCD display provides at-a-glance readings from any angle, day or night. The supplied AA batteries provide life for more than 800 measurements.

We believe that buying a meter should be simple. Your HI97105 photometer has many of the necessary accessories needed for successful measurements.

Each HI97105 is supplied with:

  • Sample cuvette (2 pcs.)
  • Sample cap (2 pcs.)
  • Plastic stopper (2 pcs.)
  • Alkaline batteries: 1.5V AA (3 pcs.)
  • Instruction manual
  • Meter quality certificate

Upgrade to the Marine Master Photometer Kit (includes the CAL Check™ Standards) for the most economical option for testing.

Each HI97105C is supplied with:

  • Sample cuvette (2 pcs.)
  • Sample cuvette cap (2 pcs.)
  • Marine pH reagent, 30 mL dropper (1 pc.)
  • Marine Alkalinity reagent, 30 mL (1 pc.)
  • Marine Calcium reagent A, 30 mL (1 pc.)
  • Marine Calcium reagent B starter kit (reagent for 25 tests)
  • Marine Nitrate High Range starter kit (reagent for 25 tests)
  • Marine Nitrite Ultra Low Range starter kit (reagent for 25 tests)
  • Marine Phosphate Ultra Low Range starter kit (reagent for 25 tests)
  • 1 mL graduated syringe with tip (2 pcs.)
  • Minipipette with tip (1 pc.)
  • 3 mL Pasteur pipette (2 pcs.)
  • 1.5V AA Alkaline batteries (3 pcs.)
  • Cloth for wiping cuvettes
  • Scissors
  • Instrument quality certificate
  • Instruction manual

Additional information

Weight 0.45 kg


SKU HI97105C-kit
Name HI97105 Marine Master Multiparameter Photometer-kit
Marine pH Range 6.3 to 8.6 pH
Marine pH Resolution 0.1 pH
Marine pH Accuracy ±0.2 pH of reading at 25 °C
Marine pH Method adaptation of the phenol red method
Marine Alkalinity Range 0.0 to 20.0 dkH; 0 to 357 ppm (as CaCO3)
Marine Alkalinity Resolution 1 dkH
Marine Alkalinity Accuracy ±0.3 dkH; ±5 ppm of reading at 25 °C
Marine Alkalinity Method colorimetric method
Marine Calcium Range 200 to 600 ppm
Marine Calcium Resolution 1 ppm
Marine Calcium Accuracy ±6% of reading at 25 °C
Marine Calcium Method adaptation of the zincon method
Marine Nitrate LR Range 0.00 to 5.00 mg/L (as NO3 )
Marine Nitrate LR Resolution 0.01 ppm
Marine Nitrate LR Accuracy ±0.25 ppm ±2% of reading at 25 °C
Marine Nitrate LR Method colorimetric
Marine Nitrate HR Range 0.0 to 75.0 ppm (as NO3)
Marine Nitrate HR Resolution 0.1 ppm
Marine Nitrate HR Accuracy ±2.0 ppm ±5% of reading at 25 °C
Marine Nitrate HR Method zinc reduction method
Marine Nitrite ULR Range 0 to 200 ppb (as NO2-N)
Marine Nitrite ULR Resolution 1 ppb
Marine Nitrite ULR Accuracy ±10 ppb ±4% of reading at 25 °C
Marine Nitrite ULR Method Adaptation of the EPA Diazotization method 354.1
Marine Phosphate ULR Range 0.00 to 0.9 ppm
Marine Phosphate ULR Resolution 0.01 ppm
Marine Phosphate ULR Accuracy ±0.02 ppm ±5% of reading at 25 °C
Marine Phosphate ULR Method adaptation of Standard Methods for the Examination of Water and Wastewater, 20th Edition, Ascorbic Method
Photometer/Colorimeter Light Source light emitting diode
Photometer/Colorimeter Light Detector silicon photocell with narrow band interference filter @ 525 nm and 610 nm
Bandpass Filter Bandwidth 8 nm
Bandpass Filter Wavelength Accuracy ±1.0 nm
Cuvette Type round 24.6 mm diameter (22 mm inside)
Light Detector silicon photocell
Display 128 x 64 pixel B/W LCD with backlight
Auto logging 200 readings
Battery Type/Life 1.5 V AA Alkaline (3 pcs.) / > 800 measurements (without backlight)
Automatic Shut-Off after 15 minutes of inactivity (30 minutes before a READ measurement)
Environment 0 to 50 °C (32 to 122 °F); 0 to 100% RH
Case IP67 rating, floating case
Weight 380 g (13.4 oz.)
Dimensions 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0 in.)


HI97105 Marine Master Multiparameter Photometer-kit