This module uses a LM393 comparator to digitally change the D0 output based on water content of the soil. HIGH is when the moisture level is greater than the threshold set by the potentiometer. There is also an analog output A0 for more accurate measurement.
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\nFeatures:
\nUsed to detect the moisture of the soil, when the soil is dry, the module outputs a high level, otherwise the output is low.
\nThe surface that is treated with nickel plating and the wide sensing area can improve the conductivity and solve the problem of easy rusting in contact with the soil, prolonging the service life.
\nControl the humidity of the soil in a wide range, and the corresponding threshold is controlled by the potentiometer. When the humidity is lower than the set value, the DO output is high, and when it is higher than the set value, the DO output is low.
\nAdopts LM393 chip, has nice working stability.
\nBuilt-in fixed bolt hole for an easy installation.
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\nSpecifications:
\nVoltage: 3.3V~5V DC
\nPCB size: 32 * 14mm / 1.26 * 0.55in
\nProbe size: 60 * 30mm / 2.36 * 1.18in
\nCable length: 200mm / 7.87in
\nPackage size: 75 * 35 * 35mm / 2.95 * 1.38 * 1.38in
\nPackage weight: 12g / 0.42ounces
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\nNote:
\n1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures.
\n2.Please allow a little measuring deviation due to manual measurement.
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\nPackage List:
\n1 * Soil Hygrometer Humidity Detection Module
