HM Digital's pH buffer solution comes in powder form, so it's lightweight, takes up very little space, is inexpensive, and has an indefinite shelf life.
No Manual Available
Features
20-pack Assorted Solutions
5-pack 20 ml packets pH 4 buffer
5-pack 20 ml packets pH 7 buffer
5-pack 20 ml packets of pH storage solution
5-pack 20 ml packets of EC/TDS calibration solution
