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Recommended for indoor or outdoor growing situations
creating backyard habitats
Toothbrush for cleaning your pH probe
Larger Yields
HM Digital PH-STOR pH Electrode Storage Solution Sea Grow Recommended for indoor or outdoorFor 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).
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