I never used digital pH meter and did it manually with litmus.
Now I'm curious, if it worth to use such kind device to control pH continuously while base acidation in progress?
As I understand, mostly it is metal, glass and PTFE?
PTFE should be also neutral?
Is there anything else to pay attention while buying? I see the price range vary from 40 to 400 EUR.
I can get a very good glass one for you . Also they have ph control systems all for lab use where I am. Some apply the acid for you, they and monitor both temperature and pH lvl. Some only monitor the pH lvl and temp. U can also choose options that can alert to your phone.
I get good lab acid rated ones here for under 100 pounds. Also I bought a ph controller system. It adds the acid drop by drop untill it reads 5 or 6 or however much number I set. It can also send me a message to my phone. Haven't used it yet as it's on the way but. It also jas a second pump to raise the pH lvl if for some reason it drops below what I want it can add another liquid to raise the pH lvl.