Sustee Aqua Meter

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Plant soil Moisture Meter Designed and made in Japan Sustee collaborated with the Tokyo University of Agriculture to design this moisture meter equipped with a pF indicator. Never over water your plants again! The refillable core lasts 6-9 months. Check out the refill packs here! No batteries! How to use: Insert your Sustee stick into the soil between the markers ▼▲ shown on the stick. Water your plant. You will start to see the pF indicator turn from white to blue within 20-30 minutes. Blue=Soil is moist; White= Soil is dry Sizes: Small - good for pots sized 2"-3" Medium - good for pots sized 4"-6" Large - good for pots sized 6" and up Show more