| Range | 0 to 500 PCU |
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| Resolution | 5 PCU |
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| Accuracy @ 25°C/77°F | ±10 PCU ±5% of reading |
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| Light Source | LED @ 470 nm |
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| Light Detector | silicon photocell |
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| Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 21st edition, Colorimetric Platinum Cobalt method |
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| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
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| Battery Type | (1) 1.5V AAA |
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| Auto-off | after ten minutes of non-use |
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| Dimensions | 81.5mm x 61mm x 37.5mm (3.2″ x 2.4″ x 1.5”) |
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| Weight | 64 g (2.25 oz.) |
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| Ordering Information | HI727 Checker® is supplied with (2) sample cuvettes with caps, battery, instructions and quick start guide |
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| Warranty | 6 month limited warranty |
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