Marine Phosphorus Ultra Low Range Checker® HC - HI736

SKU: HI736

Ships within 5-10 Business Days
This product is considered hazardous to ship and is subject to extra handling fees.

Achieve accurate water testing results with our simple handheld colorimeter. The HI736 Marine Phosphorus Ultra Low Range (0 to 200 ppb) Checker uses more precise technology than a chemical test kit. The HI736 checker uses a fixed wavelength LED and silicon photo detector to determine the measurment results digitally, eliminating the need to compare results to a color chart.

  • Compact, portable design
  • Built-in timer
  • One-button operation

Ideal for: Aquariums, Environmental, Aquaculture, Water Quality

The HI736 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphorus in marine systems including reef tanks. Phosphorus is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life. Designed as a more accurate alternative to chemical test kits, the HI736 provides quick, accurate results in four easy steps:

How to use Hanna Checker Handheld Colorimeter


Easier to use and more accurate than chemical test kits

Dedicated to a single parameter

Small size, big convenience


More Information
Product Name Marine Phosphorus Ultra Low Range Checker® HC - HI736
Quote Required No
Dangerous Good This product is considered hazardous to ship and is subject to extra handling fees.
Phosphorous Range 0 to 200 ppb
Phosphorous Resolution 1 ppb
Phosphorous Accuracy ±5 ppb ±5% of reading
Phosphorous Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic-Acid method.
Photometer/Colorimeter Light Source LED @ 525 nm
Photometer/Colorimeter Light Detector silicon photocell
Battery Type/Life (1) 1.5V AAA
Automatic Shut-Off after three minutes of non-use and two minutes after reading
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight 64 g (2.25 oz.)
Dimensions 86.0mm x 61mm x 37.5mm (3.4" x 2.4" x 1.5”)
Ordering Information HI736 Checker® is supplied with (2) sample cuvettes with caps, phosphorus ULR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
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