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Soil Moisture Sensor Module

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Available on backorder

Original price was: ₹66.70.Current price is: ₹54.05. (Including tax)


Discount per Bulk Quantity

5 - 105%51.35 (Including tax)
11 - 208%49.73 (Including tax)
21 - 4010%48.65 (Including tax)
41 - 10012%47.56 (Including tax)
  • Estimated delivery time 2-4 days
  • (Subject to stock Availability)

Product details

Soil Moisture Sensor Module can be used to detect the moisture of the soil or judge if there is water around the sensor. It has both analog and digital outputs. We can vary the digital output sensitivity of this module using a potentiometer and the sensor is based upon resistance.

Soil moisture sensor consists of two conducting plates which function as a probe and acting as a variable resistor together. They are used to measure the volumetric content of water. The two probes allow the current to pass through the soil, which gives the resistance value to measure the moisture value. When the sensor is inserted into the water, the resistance will decrease and get better conductivity between plates. Dry soil conducts electricity poorly, so when there is less water, then the soil will conduct less electricity, which means that there will be more resistance.

Pin Configuration

VCCThe VCC pin powers the module, typically with +5V
GNDPower Supply Ground
DODigital Out Pin for Digital Output
 AOAnalog out Pin for Analog Output


The working of the Soil Moisture Sensor is very simple. It works on the principle of voltage comparison. Moisture sensor module consists of four pins i.e. VCC, GND, DO, AO. Digital out pin is connected to the output pin of LM393 comparator IC while the analog pin is connected to Moisture sensor. The internal Circuit diagram of the Moisture sensor module is given below.

Operating voltage3.3v – 5 V
Sensing probe dimensions60x30mm
Panel PCB dimensions30 x 60mm
Analog Output0-5 V
Digital Output0 or 5 V
Country of OriginChina


Additional information

Weight7270 kg

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