https://www.nextdayscience.com/

Checker HC Handheld Colorimeter - Alkalinity

Item #: HI775
Manufacturer: Hanna Instruments
from: $49.00 sale: $40.18
Quantity unavailable. Try selecting a smaller quantity.

Product Description

The NDHI 775 Checker®HC is a simple, accurate, and cost effective way to measure alkalinity in fresh water. Designed as a more accurate alternative to chemical test kits, the NDHI 775 provides quick, accurate results in four easy steps.

  1. Step One - Add a sample to the included cuvette(s)
  2. Step Two - Insert sample into the Checker and zero it out
  3. Step Three - Remove sample and add reagent
  4. Step Four – Reinsert sample and click the button to measure your results or…

- Press and hold the button for 3 seconds for a time reaction reading

The NDHI 775 uses a colorimetric method. The reaction causes a distinctive range of colors from yellow to blue to develop. This meter has been developed to work with fresh water samples.

Features

Small palm-sized design

Accurate from ±5ppm ± 5% of reading

Dedicated to a single parameter

Uses a single AAA battery

Auto Power Off after 10 minutes in inactivity

Built-in timer for timed reaction readings

Specifications

 

Range   0 to 300 ppm
Resolution   1 ppm
Accuracy (@25°C/77°F)   ±5ppm ± 5% of reading
Measurement Method   Colorimetric
Light Source   Photodiode @610 nm
Light Detector   Silicon photocell
Method   Colorimetric method. The reaction causes a distinctive range of colors from yellow to green to blue to develop. This meter has been developed to work with fresh water samples.
Power Supply   Battery - 1 x 1.5V AAA
Power Auto Off   After 10 min. of inactivity
Environment   0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions   81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight   64 g (2.25 oz.)