So, it seems my pH meter is going nuts. I'm trying to do a two-point calibration with 7.01 and 4.01 solution. When I put the meter into calibration mode and it comes up and says "7.01 Use", I put it into the 7.01 solution. Then, it switches to saying "10.01 REC". It used to just stay on 7.01 REC and then move to the 4.01 solution once it registered that calibration point. Whats happening? I'm in the middle of a Berliner brew and I really need to get my meter working. Help! Thanks!