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The Checker® HC HI774 provides a simple, accurate, and affordable way to measure phosphate in marine systems, such as saltwater aquariums and coral reef tanks. The ultra-low range Checker® for Phosphate uses a fixed wavelength LED and a silicon photodetector to provide the precision of professional instrumentation at the affordable price of a test kit.
Designed as a more accurate alternative to test kits, the HI774 provides fast and accurate results. The Checker® HC HI774 comes with (2) sample cuvettes with caps, reagents for 10 phosphate tests, battery, and instruction manual.
Range: 0.00 to 0.90 ppm Resolution: 0.01 ppm Accuracy @ 25°C: ± 0.02 ppm ± 5% of reading Method: Adaptation of Standard Methods for the Examination of Water and Wastewater, 20th edition, 4500-P C, ascorbic acid method. The reaction between Phosphate and the reagent causes a blue coloration in the sample. Light Source: LED @ 525 nm Light Detector: Silicon photocell Battery Type: 1.5V AAA (1) Auto-off: After seven minutes of inactivity and two minutes after reading Environment: 0 to 50°C; RH max 95% non-condensing Dimensions: 86 x 61 x 37.5mm Weight: 64g
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