BROMAN
GROWIN n LEARNIN
- Joined
- Jan 23, 2011
- Messages
- 118
- Reaction score
- 6
Just got a new Hannah phep meter and was wondering am I supposed to calibrate the thing before use? The instructions are kind of vague and after getting the same basic reading from my drops it then varied by 2.5-3 points. Also didn't realize I needed storage or calibration solution.