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 tes Test strips much cheaper per test.

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

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.)

Received it and tested my water for chorine/chloramines. The test result was much lower than I expected so I suspected the meter was not accurate. I called the county water supplier and the technician told me that my measurement was very much in the expected range based on testing in my area by the water provider. Very happy with the purchase thus far.

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

I have to pay for shipping to the manufacture.. Going to have to buy a USPS box and pay for shipping.. It's outside the return window on Amazon which is nonsense. I only need it once a month.. That's typically what these meters are for.. I don't have a reading now for February.. I guess you have to buy 2 in case one fails.. I followed the procedures exactly.. I'm certified in as a water operator and I also program my own software.. So this will be yet another set back. The meter works when it works but as far as durability it is junk.

Accurate and easy to use.

good product