Product

Capacitance Based Soil Wetness-Moisture Sensor (EMC-SW-M-22)

A capacitance-based sensor designed for continuous measurement and monitoring of soil wetness and moisture conditions.
The EMCON Soil Wetness-Moisture Sensor is designed for continuous observation of moisture and wetness directly in soil or other engineered soils. Using capacitance-based sensing technology, the sensor provides an instantaneous moisture/wetness percentage and is designed to detect even slight changes in moisture with excellent repeatability. Its low power consumption and long-cable capability make it suitable for remote and long-term operations.

Overview

The EMCON Soil Wetness-Moisture Sensor is a capacitance-based sensor
designed for continuous observation of soil moisture and wetness.
It can be used directly in soil or other engineered soils to measure
moisture conditions.

The sensor provides accurate wetness/moisture percentage instantaneously
and is specially designed to sense even the slightest changes in moisture
with excellent repeatability.

Key Features

  • Capacitance-based soil moisture sensing
  • Continuous soil wetness observation
  • Instantaneous moisture/wetness percentage measurement
  • Can be used with different types of soils
  • Long cable connection for remote measurements
  • Suitable for centralized measurements
  • Linear 0 to 5 Volt output
  • Small-size design
  • Fully indigenous make
  • Excellent sensor interchangeability
  • Excellent long-term stability
  • Low power consumption
  • Affordable cost

Measurement Principle

The sensor uses capacitance-based sensing technology to detect moisture
and wetness in soil. Changes in soil moisture produce corresponding
changes in the sensor’s capacitance, allowing the moisture condition
to be measured.

The sensor is designed to detect even slight changes in moisture and
provides the wetness/moisture percentage instantaneously.

Applications

  • Precision farming
  • Precision irrigation
  • Soil science
  • Agro meteorology
  • Hydro meteorology
  • Remote soil moisture monitoring
  • Long-term soil moisture observation

Soil Moisture Measurement

The sensor measures soil wetness/moisture over a selectable range of
0 to 100%. It can be used directly in soil or other engineered soils
for continuous moisture observation.

Different Soil Types

The sensor can be easily used with different soils, making it suitable
for a variety of agricultural, soil science and environmental
monitoring applications.

Remote Monitoring

The sensor can be connected with a long cable, enabling remote and
centralized measurements. This allows the sensor to be installed at
the measurement location while the monitoring equipment can be placed
at a convenient remote location.

Electrical Specifications

  • Power Supply: 5 V up to 12 V
  • Output: 0 to 5 V
  • Output Capacity: 5 mA

Physical Specifications

  • Width: 4 cm
  • Length: 12 cm
  • Weight: Less than 200 grams

Continuous Observation

The EMCON Soil Wetness Sensor is designed for continuous observation
of moisture as wetness. Its sensing system provides instantaneous
wetness/moisture percentage measurements for monitoring changing soil
conditions.

Moisture Sensitivity

The sensor is specially designed to sense the slightest changes in
moisture. Its excellent repeatability helps provide consistent
measurements during continuous soil monitoring.

Long-Term Operation

The low power consumption of the sensor makes it suitable for remote
and long-term operations where continuous soil moisture monitoring
is required.

Output Signal

The sensor provides a linear voltage output from 0 to 5 V with a
5 mA output capacity. This output can be connected to suitable
monitoring or data-acquisition equipment.

Environmental Operation

The sensor has an operating temperature range of -50 to 95°C, making
it suitable for a wide range of environmental and agricultural
monitoring conditions.

Sensor Construction

The sensor has a compact physical design with a width of 4 cm,
length of 12 cm and weight of less than 200 grams.

Monitor up to 32 sensor channels simultaneously, with real-time recording, graphical monitoring and wave-data analysis from a single system.

Technical Specifications

Model
EMC-SW-M-22
Sensor Type
Capacitive type
Moisture Range
0–100%
Accuracy
<2%
Repeatability
Within 1%
Resolution
0.1%
Operating Temperature
−50 to 95°C
Output
0–5 V
Output Capacity
5 mA
Power Supply
5–12 V
Width
4 cm
Length
12 cm
Weight
<200 g
Case Studies

Engineering in action.

Munambam–Alappuzha Tidal Study

10 Stations
2 Parameters
Coastal Study

Manimalayar River Hydrodynamic Monitoring System

4 Parameters
River Study
Thiruvalla

ONGC Underwater Measurement System

10 Channels
30m & 60m
5 Parameters

Bay of Bengal Ocean Thermal Wave Study

120 Metres
Multi-Channel
Bay of Bengal