Fluoride is best known for preventing tooth decay. Water authorities often add fluoride to drinking water to maintain approximately a 1.0 mg/L concentration. Fluoride can be found naturally in ground water, particularly if a reservoir is in the proximity of draws of sea water. While fluoride does help to prevent tooth decay, too little can be ineffective and too much can cause staining.

Two different photometers are available to cover the high as well as low ranges. In addition to HI 93729 for low fluoride measurements of up to 2 mg/L with 0.01 mg/L resolution, there is the option of HI 93739 which spans the high scale all the way to 20.0 mg/L. Both meters are microprocessor based and measure only one parameter for added simplicity. The new HI 93729C kit provides you with all the necessary equipment for field measurement in a rugged carrying case.

Fluoride is best known for preventing tooth decay. Water authorities often add fluoride to drinking water to maintain approximately a 1.0 mg/L concentration. Fluoride can be found naturally in ground water, particularly if a reservoir is in the proximity of draws of sea water. While fluoride does help to prevent tooth decay, too little can be ineffective and too much can cause staining.

Two different photometers are available to cover the high as well as low ranges. In addition to HI 93729 for low fluoride measurements of up to 2 mg/L with 0.01 mg/L resolution, there is the option of HI 93739 which spans the high scale all the way to 20.0 mg/L. Both meters are microprocessor based and measure only one parameter for added simplicity. The new HI 93729C kit provides you with all the necessary equipment for field measurement in a rugged carrying case.

The HI 98401 measures fluoride from minute traces to heavy presence. The measurement range spans from 0.05 mg/L to 1.9 g/L in 5 distinct scales to provide the best resolution in every division. In addition, with autoranging, HI 98401 automatically selects the range that provides the best resolution. All results are displayed directly in fluoride (F-) concentration. In order to guarantee maximum repeatability, the measurements are performed utilizing the FC 301B fluoride specific electrode and the separate HI 5313 reference electrode. HI 98401 compensates for the temperature automatically from 5 to 35°C using the HI 7662 stainless steel temperature probe. The temperature measured together with fluoride concentrations are displayed on the large LCD simultaneously. All operations are microprocessor controlled for added precision and simplicity. Calibration is automatic at one or two points. The first calibration point is in the middle of the range at 100 mg/L (ppm). The slope can then be selected at 10 mg/L for low fluoride measurements or at 1000 mg/L for higher concentrations.