HM Digital PH-STOR pH Electrode Storage Solution HM Digital Meters pH Storage Solution (HMOPSTOR)For use with HM Digital's PH-200 and 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).
Manufacturer's P... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA (No USPS)....more info.