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Portable Fluoride Meter
  • Auto-ranging scale
  • Direct measurements in mg/L or g/L of fluoride
  • Waterproof, rugged housing


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.

HI 98401 is supplied complete with batteries, rugged carrying case and instructions.




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