www.hannainst.com

breaks easily, loses calibration quickly, when it works it's useful.

The Salinity Tester is a little more complicated than anticipated

Disappointed that chlorine checker was constrained to upper value of 2. 5 ppm, which was not useful for pool water testing

So this is a wait and see thing. Your sales people were happy to sell me parts for the one month old system but not a word about any other help.

I am having an issue with the phone holding calibration. I have recalibrated the unit 4 times in the past few weeks. Not sure if it’s the probe or the unit itself. Salt reading is fine but Ph slowly drops from 8. 2 to 7. 4. I have another probe in my calcium reactor connected to. Milwaukee unit so I know the water is fine. Please advise.