Our HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a conversion but read directly in parts per million phosphates compared to parts per billion phosphorus.

The HI774 Ultra Low Range Phosphate Checker HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including reef tanks. Phosphate 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 HI774 provides quick, accurate results in a few easy steps.

Features at-a-glance:

SKU HI774
Range 0.00 to 0.90 ppm
Resolution 0.01 ppm
Accuracy @ 25°C/77°F ±0.02 ppm ±5% of reading
Light Source LED @ 525 nm
Light Detector silicon photocell
Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic-Acid method
Battery Type (1) 1.5V AAA
Auto-off after 7 minutes of non-use and 2 minutes after reading
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)
Weight 64 g (2.3 oz)
Ordering Information HI774 Checker®HC is supplied with (2) sample cuvettes with caps, phosphate ULR reagent starter kit for 10 tests, batteries, instructions, and quick start guide.
Reagent Set HI774-25
Calibration Set HI774-11
Warranty 1 year
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