Hanna Instruments HI96739 High Range Fluoride Portable Photometer with Sample Cuvettes, 7-19/32" Length x 4-3/32" Width x 2-11/16" Height, 0.0 - 20.0mg/L, 0.1mg/L Resolution, 9V Battery

The HI96739 meter measures the fluoride content in water, wastewater and seawater in the 0 - 20 milligrams per liter (ppm) range. This meter uses an exclusive positive-locking system to ensure that the cuvette is in the same position every time it is placed into the measurement cell. It is designed to fit cuvettes with a larger neck making it easier to add both sample and reagents. The cuvettes are made from special optical glass to obtain best results. HI96739 is supplied 2 sample cuvettes with caps, 9V battery and instruction manual. 0.1 milligrams per liter (ppm) resolution. +/-0.5 milligrams per liter +/-3 percent of reading at 25 degree C accuracy. Tungsten lamp. Silicon photocell with narrow band interference filter at 575nm light detector. 0 to 50 degree C (32 to 122 degree F); RH maximum 95 percent non-condensing environment. Auto-off: After 10 minutes of non-use in measuring mode, after 1 hour of non-use in calibration mode. Measures 7.6" length by 4.1" width by 2.7" height. Adaptation of the SPADNS method.