Hanna Checker Phosphate LR HI-731 (Low Range) The HI-731 Low Range Phosphate Checker® HC (Handheld Colorimeter) offers a precise, user-friendly, and affordable solution for measuring phosphate levels in the range of 0.00 to 2.50 ppm.
Monitoring phosphate is essential in both environmental and aquarium applications. Elevated phosphate levels can fuel unwanted algae growth, reduce oxygen availability, and create harmful conditions for aquatic plants and animals.
Hanna Checker Phosphate LR HI-713 (Saltwater)
Specifications – Hanna Checker Phosphate LR HI-713
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Measurement Range: 0.00 to 2.50 ppm (mg/L)
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Resolution: 0.01 ppm
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Accuracy: ±0.04 ppm ±4% of reading at 25 °C
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Light Source: LED at 525 nm
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Light Detector: Silicon photocell
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Method: Adaptation of the Standard Ascorbic Acid Method (Standard Methods 4500‑P E). Phosphate reacts with the reagent to produce a blue color, the intensity of which is proportional to the concentration.
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Auto-Off: Automatically powers off after 2 minutes of inactivity (and 10 seconds after reading)
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Operating Environment: 0 to 50 °C (32 to 122 °F); max 95% RH, non-condensing
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Battery Type: (1) 1.5 V AAA battery
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Dimensions: 86 x 61 x 37.5 mm (3.4 x 2.4 x 1.5 in)
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Weight: 64 g (2.25 oz)
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Accessories Included: 2 sample cuvettes with caps, phosphate LR reagent starter kit (6 tests), 1.5 V AAA battery, instruction manual, and quick-start guide
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