Hanna Instruments Nitrite Ultra Low Range Checker

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The Hanna Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolut ion while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. The Checker® is both accurate and affordable. Nitrite Range 0 to 200 ppb Nitrite Resolution 1 ppb Nitrite Accuracy ±10 ppb ±4% of reading Nitrite Method adaptation of the EPA Diazotization method 354.1. Photometer/Colorimeter Light Source LED @ 525 nm Photometer/Colorimeter Light Detector silicon photocell Battery Type/Life (1) 1.5V AAA Automatic Shut-Off after two minutes of non-use Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing Weight 64 g (2.25 oz.) Dimensions 81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5”) Ordering Information HI764 Checker® is supplied with (2) sample cuvettes with caps, nitrite ULR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide. Show more