[HoosierBrew]

+1 to Bru'nWater. If you're careful to enter the correct grist, water volumes and use RO, it seems to predict pH very accurately. If I were to ever feel I needed it I'd buy a meter I suppose, but I'm a lot of batches in on Bru'nWater and it works consistently well. Really pleased.

[Scot (one T)]

I use my ph meter a lot in mead making..takes apx 2 minutes to calibrate...works like a charm.  Had it a year...no issues... no parts to replace.

  I use the Milwaukee MW102

[hopfenundmalz]

+1 to Bru'nWater. If you're careful to enter the correct grist, water volumes and use RO, it seems to predict pH very accurately. If I were to ever feel I needed it I'd buy a meter I suppose, but I'm a lot of batches in on Bru'nWater and it works consistently well. Really pleased.

Every now bad then I have a mash that is a little off, so I have to adjust. That could be grist variation or base RO water variation. I check the mash pH, and have started measuring kettle pH. I have to get with it and measure the finished beer pH someday