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Soil Moisture Sensor Module


Soil Moisture Sensor

  • Dual output mode, Analog and Digital
  • Easy installation
  • With power indicator (red) and digital switching output indicator (green)
  •  LM393 comparator chip for setting threshold
  • Operating Voltage: 3.3V~5V

100.00 84.75+18% GST

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SKU 04AA005 Categories ,

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Soil Moisture Sensor

This is an easy to use digital soil moisture sensor. Just insert the sensor in the soil and it can measure moisture or water level content in it. It gives a digital output of 5V when moisture level is high and 0V when the moisture level is low in the soil. 

The sensor includes a potentiometer to set the desired moisture threshold. When the sensor measures more moisture than the set threshold, the digital output goes high and an LED indicates the output. When the moisture in the soil is less than the set threshold, the output remains low. The digital output can be connected to a microcontroller to sense the moisture level. The sensor also outputs an analog output which can be connected to the ADC of a microcontroller to get the exact moisture level in the soil.

This sensor is great for making water gardening projects, water sensing, etc.

Click here to download the datasheet of L393 comparator IC.

Get Started with Soil Moisture Sensor and Arduino today.

Application Idea

  • Botanical gardening
  • Water monitering


  • Digital output, easy to adjust
  • Nickel plating to avoid corrosion
  • Working voltage: 3.3V-5V
  • On-board LM393 chip
  • Dimension of the board: 3.2cm * 1.4cm


  • VCC  connect to 3.3V-5V
  • GND  connect to GND
  • DO  digital value output connector(0 or 1)
  • AO  analog value output connector

Package Includes:

1 x Soil moisture sensor module.


Operating Voltage(VDC) 3.3 to 5
PCB Dimension Approx.3cm x 1.5cm
Soil Probe Dimension Approx. 6cm x 3cm
Cable Length 20 cm


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