- Joined
- Apr 13, 2016
- Messages
- 373
- Reaction score
- 122
I keep trying recalibrate my pH meter using my profilux and I keep getting a different reading from my Hanna checker. Not sure which is actually more acurate. At first I thought it was the reagents from GHL which I got used. At that time there was about a .3-.4 discrepancy. Now after recalibrating using lab grade solutions its off by a little more. I have the Milwaukee MA911B/2. It was recommeded to me and I got it brand new.