Hanna Instruments HI 711 Checker HC Handheld Colorimeter, For Total Chlorine

Works good

Does the job I need for less than half the price of more expensive devices

You should know.... Works well but 3 issues. Came with dead battery. Only able to do 7 tests without ordering supplies. More "reagent" costs a dollar per tesTest strips much cheaper per test.

Compared to $700 dollar meter and was within .05 of the reading. Great value!

I tested before and after a carbon filter. Results were as expected. It only come with chemicals for a few tests. Seems fairly accurate.

Unlike the HI 729 Fluoride test, this one is really simple. You zero the device using your sample before you add the reagent. You then add the powdered reagent and run the test. I think you have to wait 2 minutes 30 seconds for the results. (Perhaps this just seemed simple after I fully understood how to get accurate results out of the Fluoride test.)

Works great and allowed me to check that my water is free of chlorine (after treatment) for home brewing. Read and follow the instructions carefully--the unit works by making a comparison of two measurements and if you get a step wrong you have to start over.

A great and more product for measuring chlorine in water. It's digital reading takes out all guessing work and it doesn't require sunlight to be accurate in comparing colors for reading. However, it does consume sacks of additives require for measuring chlorine in water, so my advise is to purchase a good amount of sacks to use them in the test. Also, another recommendation is to carry out this test every a month or so, and use other product strips for quick tests.

Accurate and easy to use.

good product