Hanna Instruments Alkalinity Checker Colorimeter - Product Overview

The HANNA Alkalinity Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA Alkalinity Checker is accurate and affordable.

The HANNA Alkalinity Checker features an accuracy of ±5 ppm (mg/L) ±5% of reading and uses the colorimetric method.

The contoured style of this Alkalinity Checker 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 HANNA Alkalinity Checker is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HANNA Alkalinity Checker and press the button to read the results. It's that easy.

-Range: 0 to 250ppm (mg/L)
-Resolution: 0.1 ppm (mg/L)
-Accuracy: +/- 10% of Reading (0-75) and +/- 5% of reading (75-250)
-Battery Type: 1 - 1.5V AAA

[LifeofAmyJune]

I've had great success with the alkalinity one..

[jmadden]

After watching a few of these Marine Depot videos I really wish that they were more informative rather than just pitching a product. For example, why not show how to use it and show all the great 'handy dandy' features. A little bit of effort could go a long way. Just an initial observation...

[joe]

to be honest these checkers are junk. i have the calcium and alk test and everytime i use them i get different readings each time