Nitrite Water Testing Kits

Nitrite Low Range, High Range and Marine Nitrite Ultra Low Range

  • Handheld Colorimeters
  • Easier to use and more accurate than chemical test kits
  • Dedicated to a single parameter
  • Small size, big convenience

Ideal for:

  • Aquaculture
  • Aquariums
  • Education
  • Environmental
  • Water quality
  • Wastewater

Nitrification is the biological oxidation of ammonia (ammonium ion) into nitrite, followed by the oxidation of nitrite to nitrate. The first step of this two-step process is carried out in an aquarium by nitrifying bacteria. During this quick process, the ammonium levels drop while the nitrite levels increase. Since nitrite is just as harmful as ammonia, nitrite levels should be maintained at immeasurable levels. A mature biological filter should be able to keep nitrite levels low.

The HI707, HI708 and HI764 Checker®HC Handheld Colorimeters bridge the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate, while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. Hanna Checker®HC’s are accurate, affordable and easy to use.

To begin measurements, first zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Checker®HC, press and hold the button for 3 seconds to start reaction timer. reading will be taken automatically and the results displayed. It’s that easy.

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.

HI764 (Marine ULR)HI707 (LR)HI708 (HR)
Range0 to 200 ppb NO2-—N0 to 600 ppb NO2-0 to 150 ppm NO2-
Resolution1 ppb1 ppb1 ppm
Accuracy @ 25°C/77°F±10 ppb ±4% of reading±20 ppb ±5% of reading±3 ppm ±5% of reading
Light SourceLED @ 525 nmLED @ 470 nmLED @ 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-useafter ten 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 the EPA Diazotization method 354.1adaptation of the Ferrous
Sulfate 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.