The Planted Tank Forum - View Single Post - pH Meter
Thread: pH Meter
View Single Post
post #2 of (permalink) Old 11-22-2012, 02:50 AM
Algae Grower
byork's Avatar
Join Date: Sep 2012
Location: Atlanta, Georgia
Posts: 70
I have a cheap-o one I calibrate it with 7.01 solution. It seems pretty accurate. I have tested it against API tests and the same results. Mine has a problem with the digital read out, the last 2 are missing unless you squeeze it just right. So if the pH is reading 7.1 you would not see the 1 at all. I don't trust it but for daily testing it is close enough and in my opinion as reliable as most multi test strips I have tried. Try calibrating it with only the 7 lab grade since hopefully you will not need it to be accurate below 5. See if that works.
byork is offline  
For the best viewing experience please update your browser to Google Chrome