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Phosphorus Checker

You are here : Home | Spares & Parts | Water Testing Equipment Water Testing Instruments | Single Parameter Checkers | Phosphorus

Single Parameter Check - Phosphorus

Phosphorous CheckerPhosphorus Handheld Colorimeters

  • Easier to use and more accurate than chemical test kits
  • Dedicated to a single parameter
  • Small size, big convenience
  • Ideal for aquaculture

Plants, algae and phytoplankton require phosphorus for nourishment and utilise phosphorous as a component of cell tissue. When organic matter such as plant tissue, dead fish, algae, or uneaten food breaks down aerobically (with oxygen), phosphate is produced, This results in rapid oxygen depletion of aquarium water, which in turn suffocates aquatic life and compounds the problem.

Phosphorus concentration in water is monitored because it causes corrosion when present in levels too high.

Both the Hanna HI736 and HI706 Checker®HC's bridge the gap between simple chemical test kits and professional instrumentation. The Hanna HI736 (for marine applications) and HI706 (for fresh water applications) are both accurate and affordable.

The HI736 Checker®HC portable handheld colorimeter features a resolution of 1 ppb and ±5 ppb ±5% of reading accuracy and uses an adaptation of the Ascorbic Acid.

ImageNamePrice Inc VATBuy


HI770 (HR)HI705 (LR)
Range0.00 to 2.50 ppm0.0 to 30.0 ppm
Resolution0.01 ppm0.1 ppm
Accuracy @ 25°C/77°F±0.04 ppm ±4% of reading±1.0 ppm ±5% of reading
Light SourceLED @ 525 nm
Light Detectorsilicon photocell
Environment0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type(1) 1.5V AAA
Auto-offafter two minutes of non-useafter ten minutes of non-use
Dimensions81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight64 g (2.25 oz.)
Methodadaptation of the Ascorbic Acid methodadaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Amino Acid method