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Hanna HI-762 Free Chlorine Ultra Low Range

With the HI-762 Free Chlorine Ultra Low Range Handheld Colorimeter you can check for total chlorine at the touch of a button and get instant results. Chlorine is the most common water disinfectant. Once in water it presents as free chlorine and total chlorine.

Grouped product items
Product Name Quantity
Hanna HI-762 Ultra Low Range Free Chlorine Handheld Colorimeter Checker HC (TK0105)
£94.95
- +
Hanna HI-762-25 Reagents for HI-762 Free Chlorine Checker ultra Low Range Checker(TK0106)
£39.95
- +
In stock

With the HI-762 Free Chlorine Ultra Low Range Handheld Colorimeter you can check for total chlorine at the touch of a button and get instant results. Chlorine is the most common water disinfectant. Once in water it presents as free chlorine and total chlorine.

  • Free chlorine is the chlorine that is available in the water to tackle bacteria. As the process of disinfection takes place, the levels of free chlorine will reduce.
  • Total chlorine is the measurement of free and used chlorine in the water. If the total chlorine is high but the free chlorine is low or non-existent, then there is insufficient chlorine in the water to deal with the levels of contamination.


Free chlorine is the most frequently tested of the two chemicals. By checking for the two as part of a rigorous testing procedure, adjustments in chlorine levels can be made quickly and easily and a high level of disinfection can be easily maintained.

Perfect for palm and pocket

The contoured style of the HI761 Total Chlorine Checker is designed to fit in the palm of your hand. The large LCD is easy to read and the auto shut-off feature ensures the battery life will not be drained if you forget to turn it off.

Accurate and easy to use

  • ±5ppb ± 5% of reading
  • 1 ppb
  • Designed to work with Hanna DPD reagents
  • Large easy to read digits
  • Auto shut-off


The HI762 Checker for Free Chlorine is Ideal for

  • Koi Ponds
  • Swimming pools and spas
  • Disinfection
  • Water and quality control checks
  • Waste water treatment


The HI762 Checker for Free Chlorine comes complete with:

  • 2 sample cuvettes
  • 1 black cuvette cap
  • 6 powder reagents for Total Chlorine
  • 1 x 1.5V AAA battery
  • Full working instructions

The HI762 Checker for Free Chlorine Specification:

Range0 to 500 (ppb)
Resolution1 ppb
Precision±5ppb ± 5% of reading
Light SourceLED @ 525 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 2 minutes of non-use and after read
Dimensions81.5 x 61 x 37.5 mm
Weight64 g

Specification
Water Issue Chlorine

We aim to dispatch orders received before midday Monday to Friday on the same day where possible. In most cases our items are available for 1 to 2 day delivery at a competitive price and are trackable via DPD or APC.

Delivery costs for standard items in the UK - £5.95

(Surcharges do apply to remote postcodes)

Heavy items - £9.95

Pipe - £14.95

Palletised items - Some large oversize products, typically items weighing more than 30kg, may require delivery via pallet. Standard Pallet charge is approx. £50.00. To ensure there are no delays with delivery, please include a contact number when placing the order.

Overseas – DHL and UPS, cost based on weight / volume at checkout.