HM Digital PH Storage Solution, 2 oz.

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).

NOTE: NOT FOR CALIBRATION. To calibrate your pH meter, use a pH buffer.