The Capacitive Soil Moisture Sensor is a high-quality, corrosion-resistant sensor designed to measure soil moisture levels with greater accuracy and durability than traditional resistive sensors. Ideal for smart irrigation systems, agricultural automation, or hobby electronics projects, this sensor provides reliable analog output corresponding to soil water content. Its capacitive sensing technology ensures longer life and stable performance even in harsh environmental conditions.
Whether you’re developing a greenhouse controller, automatic watering system, or environmental monitoring setup, this sensor is a dependable and efficient choice.
Product Specifications
Feature
Specification
Sensor Type
Capacitive Soil Moisture Sensor
Operating Voltage
3.3V – 5V DC
Output Type
Analog Voltage
Interface
3-pin (VCC, GND, AOUT)
Measurement Range
0% (dry) to 100% (wet)
PCB Material
FR4 High-Quality Double-Sided
Waterproof
No (sensor part only, needs protective casing if used outdoors)
Dimensions
Approx. 98mm x 23mm
Advantages
Corrosion-resistant, durable, longer lifespan than resistive types
Key Features
Capacitive Technology: More accurate and reliable than resistive moisture sensors.
Corrosion-Resistant Design: No exposed metal probes—ensures longer life in moist environments.
Wide Compatibility: Works with Arduino, ESP32, Raspberry Pi, and other microcontrollers.
Analog Output: Provides easy-to-read voltage that changes with soil moisture.
Lightweight & Compact: Easy to integrate into compact systems or embedded devices.
Applications
Automatic plant watering systems
Smart agriculture and precision farming
Greenhouse environmental control
Soil monitoring projects
Home gardening and hydroponics
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