Just insert the capacitive sensor into the soil, you can get the real-time data of soil moisture, an external screen, a motherboard, you can talk to your plants! See if your beloved plant is thirsty and needs a little ! Applications: garden plants; moisture detection; intelligent agriculture, note: the humidity is large when the voltage is small, the humidity is small when the voltage is large, please go back to confirm with a multimeter measurement., Manufacturer: CTRLZS