Hanna HI 764 Checker HC Colorimeter - Nitrite Ultra Low Range

Eliminate the hassle of matching a color chart with Hanna Instruments Ultra Low Range Nitrite Colorimeter. This handheld instrument is ideal for marine aquariums and fills a much needed gap between a Standard Test Kit, which has limited accuracy, and more high-tech and costly measuring instruments. The HI764 efficiently and accurately measures nitrite levels so you can keep them well within a safe range for your inhabitants. When ammonia oxidizes, it creates nitrites, and those oxidize into nitrates. During the first part of this process, ammonia levels decrease quickly, and nitrite levels skyrocket, just as quickly. Due to the damage nitrite is able to do when it is in excess, it is important to monitor the levels carefully. The compact design fits perfectly in your hand, or pocket, features an easy-to-read LCD screen, and an auto shut-off feature, so the battery doesn't drain unnecessarily. 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. To take a measurement: 1) Zero instrument 2) Add reagent 3) Add vial to checker 4) Press button 5) read results! Range: 0 to 200 ppb Resolution: 1 ppb Accuracy @ 25°C/77°F: ±10 ppb ±4% of reading Light Source: LED @ 525 nm Light Detector: silicon photocell Method: adaptation of the EPA Diazotization method 354.1 Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing Battery Type: (1) 1.5V AAA