no minimum order size


HI707 Freshwater Nitrite LR Checker® HC (0-999 ppb)

Nitrite LR Checker (0-999 ppb)
  • Get accurate water testing results with our simple handheld colorimeter.

    Our low range nitrite colorimeter brings you more precise technology from your typical chemical test kit. Don’t struggle to determine colors visually, our handheld colorimeter eliminates the hassle of matching to a color chart by providing a direct nitrite result digitally.

    ·       Our portable handheld colorimeter is easily carried in your pocket 

    ·       Get your nitrite results simply with one-button design 

    ·       Quickly get your results without using a color chart 


    The HI707 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure nitrite. As an intermediate part of the nitrogen cycle, nitrites are present in a variety of sources, from drinking water to industrial water. Due to the harmful effects to the environment and aquatic life, nitrite levels must be closely monitored. Designed as a more accurate alternative to chemical test kits, the HI707 provides quick, accurate results in a few easy steps.

    Features at-a-glance:

    ·       Easier to use and more accurate than chemical test kits

    ·       Dedicated to a single parameter

    ·       Small size, big convenience

    ·       Ideal for: Water Quality, Environmental, Education, Aquaculture, Boiling and Cooling Towers



    0 to 600 ppb NO₂-N


    1 ppb

    Accuracy @ 25°C/77°F

    ±20 ppb ±5% of reading

    Light Source

    LED @ 470 nm

    Light Detector

    silicon photocell


    adaptation of the EPA Diazotization method 354.1


    0 to 50°C (32 to 122°F); RH max 95% non-condensing

    Battery Type

    (1) 1.5V AAA


    after ten minutes of non-use


    81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5”)


    64 g (2.25 oz.)

    Ordering Information

    HI707 Checker® is supplied with (2) sample cuvettes with caps, nitrite LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.


    1 year limited warranty