free chlorine

Free Chlorine Testing Kits

  • Handheld Colorimeter
  • Easier to use and more accurate than chemical test kits EPA approved DPD method
  • ±0.03 ppm ±3% of reading accuracy
  • 0.01 ppm resolution
  • Large, easy-to-read digits
  • Auto shut off

Dedicated to a single parameter Designed to work with Hanna’s powder reagents
Small size, big convenience The Checker®HC easily fits into the palm of your hand or pocket
Use for quick and accurate on-the-spot analysis
Single-button operation: zero and measure

Ideal for:

  • Swimming pools and spas
  • Fruit and vegetable sanitation
  • Disinfection
  • Drinking water and quality control checks

The HI701 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution, while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The Hanna HI701 Checker®HC is accurate and affordable.

This Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm and ±0.03 ppm ±3% of reading accuracy. It also uses an EPA approved DPD method.

The contoured style of the Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI701 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.

Range0.00 to 2.50 ppm
Resolution0.01 ppm
Accuracy @ 25°C/77°F±0.03 ppm ±3% 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 two minutes of non-use
Dimensions81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight64 g (2.25 oz.)
Methodadaptation of USEPA method 330.5, DPD method

Need Help?

We can advise on the correct water testing equipment for your requirements.
Please contact us on
01629 363311

we are more than happy to help.