Hanna Instruments HI96707 Low Range Nitrite Portable Photometer with Sample Cuvettes, 7-19/32" Length x 4-3/32" Width x 2-11/16" Height, 0.00 - 0.600mg/L, 0.01mg/L Resolution, 9V Battery

This meter uses an exclusive positive-locking system to ensure that the cuvette is in the same place every time it is placed into the measurement cell. The HI 96707 measures the Nitrogen-Nitrite content in the 0.000 - 0.600 milligrams per liter range, in drinking, surface and saline water samples and in domestic and industrial wastes. Nitrites are an intermediate product in the nitrogen cycle and are produced by ammonia oxidation with water, or even originate in industrial waste directly. They must not be present in drinking water. HI96707 is supplied with 2 sample cuvettes with caps, 9V battery and instruction manual. 0.00 To 0.600 milligrams per liter (ppm) range. 0.01 milligrams per liter (ppm) resolution. +/-0.020 milligrams per liter (ppm) +/-4 percent of reading at 25 degree C accuracy. Adaptation of an EPA approved method. Tungsten lamp. Silicon photocell with narrow band interference filter at 525nm light detector. 0 To 50 degree C (32 to 122 degree F); RH maximum 95 percent non-condensing environment. 9V Battery power supply. Auto-Shut off: after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder. Measures 7.6" length by 4.1" width by 2.7" height.