Seeed Studio Studio Grove Capacitive Moisture Sensor (Corrosion Resistant) - Analog Output
Seeed Studio Studio Grove Capacitive Moisture Sensor (Corrosion Resistant) - Analog Output - Image 2
SKU: SENS-0435
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Seeed Studio Studio Grove Capacitive Moisture Sensor (Corrosion Resistant) - Analog Output

₹719.00 (Inclusive of all taxes)
Out of Stock

The Seeed Studio Studio Grove Capacitive Moisture Sensor provides a corrosion-resistant solution for qualitative soil moisture monitoring, compatible with 3.3V/5V Arduino, Raspberry Pi, and other microcontroller platforms via its analog output interface.

Features

  • Capacitive sensing principle eliminates metal electrode corrosion
  • Integrated signal amplifier for direct analog voltage output
  • Qualitative soil moisture detection (relative humidity level)
  • Standard Grove connector for plug-and-play system integration
  • Compact form factor with 2mm mounting holes for secure installation

Out of stock

Description

This sensor operates on a capacitive sensing principle, measuring changes in dielectric permittivity as soil moisture varies. Unlike resistive sensors, its electrodes are not directly exposed, preventing electrochemical corrosion and ensuring long-term stability in moist environments.

The built-in amplifier conditions the signal for direct reading by a microcontroller’s ADC pin, outputting an analog voltage that inversely correlates with soil moisture content. It is designed for qualitative assessment, making it ideal for automated plant watering systems and environmental monitoring projects where precise volumetric water content measurement is not required.

Key Features

  • Corrosion-resistant capacitive sensing element for enhanced durability
  • Onboard signal conditioning amplifier for robust analog output
  • Wide 3.3V to 5V DC operating voltage range for system flexibility
  • Grove standardized 4-pin connector simplifies wiring and prototyping
  • Compact PCB design (92.1mm x 23.5mm) with integrated mounting holes
  • Optimized performance-to-cost ratio for educational and hobbyist applications

Applications

  • Automated plant watering systems for home gardening or horticulture
  • Soil moisture monitoring in greenhouse environmental control setups
  • Educational projects demonstrating capacitive sensing principles
  • IoT-based smart agriculture and plant health monitoring nodes

Technical Specifications

Model / NameGrove Capacitive Moisture Sensor
Sensing PrincipleCapacitive
Output SignalAnalog Voltage
Operating Voltage3.3 to 5 VDC
InterfaceGrove (Analog)
Measurement TypeQualitative (Relative Humidity)
Dimensions (L x W)92.1 mm x 23.5 mm
Mounting Hole Diameter2 mm
Weight11 g

Frequently Asked Questions

What is the operating voltage range for this moisture sensor?

The sensor operates from 3.3V to 5V DC, making it directly compatible with most common microcontroller platforms like Arduino (5V) and Raspberry Pi/ESP32 (3.3V) without requiring a level shifter.

How does the capacitive sensing principle prevent corrosion?

Unlike resistive sensors, the capacitive sensing element does not expose metal electrodes directly to the soil. It measures changes in the dielectric property (capacitance) of the surrounding medium, which eliminates the electrochemical reactions that cause electrode erosion.

Can this sensor provide a quantitative soil moisture percentage?

No, this sensor is designed for qualitative measurement. It outputs an analog voltage that decreases as soil humidity increases, providing a relative indication of moisture level. Calibration against specific soil types is required for approximate quantitative estimates.

What microcontroller interface does the Grove connector use?

The sensor uses the standard 4-pin Grove connector, which in this configuration carries power (3.3V/5V), ground, and a single analog output signal. It connects directly to a microcontroller's analog input pin for reading the voltage value.

Package Includes

  • 1 x Grove Capacitive Moisture Sensor

Additional Information

Weight 0.011 kg
Dimensions 9.21 × 2.35 cm

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