Hanna Instruments Checker Marine Calcium Colorimeter


HM Digital SAL-1700 Professional Salinity and Temperature Meter

Hanna Instruments Phosphate Checker Colorimeter

Brand: Hanna Instruments
Product Code: HN73600
Availability: In Stock
$54.99 $59.99
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Price in reward points: 4999
Hanna Instruments Phosphate Checker Colorimeter 

The Hanna Phosphate Low Range Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color.

Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Phosphate Low Range Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.

Range             0.00 to 2.50 ppm

Resolution       0.01 ppm

Accuracy          @ 25°C/77°F    ±0.04 ppm ±4% of reading

Light Source     LED @ 525 nm

Light Detector   Silicon photocell

Method             Aadaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic-Acid method

Environment     0 to 50°C (32 to 122°F); RH max 95% non-condensing

Battery Type     (1) 1.5V AAA

Auto-off            After three minutes of non-use and two minutes after reading

Dimensions       81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5”)

Weight              64 g (2.25 oz.)

Ordering Information     HI713 Checker® is supplied with (2) sample cuvettes with caps, phosphate LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.


  • Phosphate Checker - includes reagent for 6 tests