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2 Pieces Soil Humidity Hygrometer Moisture Detection Sensor Module - $5 (Beverly Hills Adj)
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The Soil Moisture Sensor is used to measure the water content (volumetric water content) of soil. This makes it ideal for performing experiments in courses such as soil science, agriculture science, environmental science, horticulture, botany, and biology. Use the soil Moisture sensor to:
The sensor measures the loss of moisture over time due to evaporation and plant uptake.
It can evaluate optimum soil moisture content for various species of plants.
It is used to monitor soil moisture content to control irrigation in greenhouses.
They can enhance your bottle biology experiments.
Soil Moisture Sensor Pinout
Usually, a basic soil moisture sensor will have three pins – VCC (power supply), GND (ground), and OUT (signal output). The VCC pin is where you connect the power source to provide energy for the sensor to operate. The GND pin serves as the reference point for electrical circuits by connecting them to ground.
The OUT pins are crucial as it provides analog or digital signals based on the moisture level detected in the soil.
Specifications
The specifications of a soil moisture sensor play a crucial role in determining its effectiveness in monitoring the water content of the soil. These sensors typically operate within a specific voltage range, most commonly around 3.3V to 5V.
Moreover, the sensor’s output signal is often digital, providing easy integration with different IoT devices for real-time data transmission and analysis. The measurement accuracy of these sensors can vary depending on the model, with some offering precise readings within a specific moisture range.
Many soil moisture sensors also have waterproof casings that shield the internal components from damage and corrosion, making them resistant to harsh environmental conditions.