HOME > HANNA-INSTRUMENTS > COLORIMETERS > HI-739 hanna-instruments logo

Hanna Instruments HI 739 Checker HC Handheld Colorimeter for High Range Fluoride Tests is no longer available.

  • Easier to use and more accurate than chemical test kits
  • Range: 0.0 to 20.0 ppm
  • SPADNS method
  • ±0.5 ppm ± 5% of reading accuracy
  • Dedicated to a single parameter
  • Designed to work with HANNA±s reagents and Uses 10 mL glass cuvettes
  • Small size, big convenience
  • Single button operation: zero and measure
  • Large, easy to read digits
  • Auto shut off
Click here for a larger image of the Hanna Instruments HI739Click here for a larger image
Hanna Instruments HI739 Shown
Product Information
Manual 0 KB PDF
PDF HelpPDF Help

Fluoride is one of the very few chemicals that have been shown to cause significant effects in people through drinking-water. Fluoride has beneficial effects on teeth at low concentrations in drinking-water, but excessive exposure to fluoride in drinking-water, or in combination with exposure to fluoride from other sources, can give rise to a number of adverse effects, which can be easily measured by the Hanna Instruments HI 739 Checker HC Handheld Colorimeter for High Range Fluoride Tests.

Water fluoridation is the controlled addition of fluoride to a public water supply to reduce tooth decay. Fluoridated water operates on tooth surfaces: in the mouth it creates low levels of fluoride in saliva, which reduces the rate at which tooth enamel demineralizes and increases the rate at which it remineralizes in the early stages of cavities. A 1994 World Health Organization expert committee suggested a level of fluoride from 0.5 to 1.0 mg/L, depending on climate. Bottled water typically has unknown fluoride levels, and some domestic water filters remove some or all fluoride.

The Hanna Instruments HI739 Checker HC Handheld Colorimeter is simple to use. In one vial add 2 ml of Reagent A and 8 ml of Reagent B; gently invert 5 times, and wait 1 minute, then zero the instrument with the vial. After zeroing, remove the vial and add 1 ml of sample, gently invert 5 times, wait 1 minute, then insert the cuvette into the Hanna Instruments HI 739 Checker HC Handheld Colorimeter and press the read button for results.

Ordering Information
Model Description Buy Online Price
HI739  Hanna Instruments HI 739 Checker HC Handheld Colorimeter for High Range Fluoride Tests Not Available
Included Accessories
  • 2 - Sample Cuvettes with Caps
  • 1 - Set of Reagents for 4 Tests
  • 1 - Battery
  • 1 - Instruction
Optional Accessories
Cleaning Solutions
HI93703-50 Hanna Instruments HI 93703-50 Cuvette Cleaning Solution for the HI 93703 Series Not Available
Cleaning Tools & Replacement Parts
HI731318 Hanna Instruments HI 731318 Non-abrasive Cuvette Cleaning Cloth, Pack of 4 Not Available
HI731321 Hanna Instruments HI 731321 Glass Cuvette Set for HI 83 series photometers and turbidimeters Not Available
HI731325 Hanna Instruments HI 731325 Cuvette Cap Turbidity Meters & HI 937xx Series Meters Not Available