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To prevent over or under watering, simply stick the moisture meter into soil, and it will tell you when it's time to give plants water. The simple design goes well with any pot type.Compatible with potting mix, barkdust, peat moss, and semi-hydroponic setups.
Designed by Tetsutaro Nakabayashi. Researched and tested by the Tokyo University of Agriculture.

Size: Recommended for 10" wide pot diameters or larger.