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About this item
This module is a plant watering alarm.(you can put it into the soil near a plant and it emits a tiny chirp when the soil is dry, reminding you to water the plant.)
Features alarm function; The alarm level can be set for each plant individually; Chirp will increase the alarm rate as more water evaporates.
The chirp will use capacitive humidity sensing instead of resistive humidity sensing, which means it won't make an electric contact with the soil.
Avoid electrode corrosion and soil electrolysis reaction to better increase accuracy and longer battery life.