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.