+44 (0)1525 850 855
Order before 4pm for same day dispatch Weekdays only
Menu

In Stock 2 Items available

HI-739

The HI-739 pocket checker is a simple and accurate way to measure high ranges of fluoride in fresh water.

Checker®HC is supplied with reagents for 15 tests. Use code HI-739-26 (30 tests) for future purchases.

0.0 to 20.0 ppm
Ideal for water quality testing

£86.50 (exc.VAT)
£103.80 (tax incl.)
Accessories
Reference
Price
Quantity
Full Description Specification Manuals

The HI-739 pocket checker is a simple and accurate way to measure high ranges of fluoride.

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.

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 de-mineralises and increases the rate at which it re-mineralises in the early stages of cavities.

A 1994 World Health Organisation 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.

Key features:

  • Accurate and easy to use
  • Adaptation of SPADNS method
  • ±0.5 ppm ±5% of reading
  • 0.1 ppm resolution
  • Designed to work with Hanna reagents
  • Large easy to read digits
  • Auto shut-off

Ideal for:

  • Water testing
  • Quick on the spot analysis
  • Not suitable for aquariums of any kind

Supplied with:

  • 2 sample cuvettes with caps
  • Reagents for 15 tests (re-ordering information HI-739-26 x 30 tests)
  • Syringe with tip
  • Pipette
  • 1 x 1.5V AAA battery
  • Instructions

Four steps. One click. Instant Readout.

Step 1  1. ‘Zero’ the Checker®HC with your vial & 10ml water sample inside

Step 2  2. Take the vial out and add your reagent

Step 3  3. Place your vial into your Checker®HC

Step 4  4. Press the button and read the results

Also available: HI-739-11 Calibration Set. Use HI-739-11 Calibration Sets with Hi-739 Fluoride High Range Handheld Colorimeter, Checker®HC.

Use HI-739-26 Reagents with Hi-739 Fluoride High Range Handheld Colorimeter, Checker®HC, 30 tests.

Safety Data Sheets

When using any form of chemical, such as Hanna reagents, it is important you download the relevant safety data sheet and make yourself aware of any precautions you should take when handling the chemical. You can access our library of safety data sheets and download a copy by following the link below.

Please note that the '-' in HI- products should be removed from all searches to find the correct information.

CLICK HERE

Read More

Range0.0 to 20.0 ppm
Resolution0.1 ppm
Accuracy @ 25°C±0.5 ppm ± 5% of reading
Light SourceLED @ 575 nm
Light Detectorsilicon photocell
Environment0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type(1) 1.5V AAA
Auto-offafter two minutes of non-use and ten seconds after reading
Dimensions81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight64 g (2.25 oz.)
Methodadaptation of SPADNS method