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 storage solution. The sponge should be moist (not soaking wet).

FEATURES:

• High concentration
• Extends probe life
• Has fungicide to keep probe clean
• Convenient size