HM Digital Solutions

PH-STOR: pH Electrode Storage Solution PH storage solution for HM Digital’s PH-200 / PH-80 as well as other brands of pH meters. Always make sure your sensor is kept in an electrode storage solution. If dry, refill the pH meter cap with the PH-STOR...

20 Pack pH 4 Buffer Solution (20) packets of 20 ml pH 4 buffer

20 Pack pH 4 Buffer Solution (20) packets of 20 ml pH 4 buffer

20 Pack Sodium Chloride(NaCl) EC/TDS Calibration Solution (20) packets of 20 ml 1000ppm / 2mS / 2000 µS solution

20 Pack Assorted Solutions (5) 20 ml packets pH 4 buffer (5) 20 ml packets pH 7 buffer (5) 20 ml packets pH storage solution (5) 20 ml packets EC/TDS calibration solution