Analog Capacitive Soil Moisture Sensor

Capacitive Corrosion-Resistant Probe: Measures soil moisture levels by sensing changes in capacitance rather than electrical resistance, preventing probe oxidation and corrosion over time.

Onboard Voltage Regulator: Features an onboard 3.3V voltage regulator to maintain stable sensing performance across 3.3V - 5.5V operating power ranges.

Continuous Analog Level Telemetry: Outputs a continuous analog voltage signal that corresponds directly to the substrate's moisture concentration for high-resolution ADC sampling.

Wide Microcontroller Compatibility: Designed for seamless interfacing with 3.3V and 5V platforms including ESP32, Arduino, Raspberry Pi, and STM32.

3-Pin Gravity Interface Harness: Equipped with a standard 3-pin (VCC, GND, AOUT) PH2.0/Gravity-style interface connector and wire harness for fast, solder-free wiring.

Board Material: Flame-retardant FR-4 glass-epoxy probe board with internal capacitive copper trace layers and protective solder mask overlay.

Technical Specifications:

Sensor Type: Analog Capacitive Soil Moisture Transducer (v1.2).

Operating Supply Voltage: 3.3V – 5.5V DC.

Output Signal Voltage: 0.0V – 3.0V DC.

Interface Type: 3-Pin PH2.0 / Gravity Header.

Board Color: Black PCB with White Silkscreen & Gold-Plated Trace Edges.

Usage Advice: Insert the probe portion vertically into potting soil up to the silk-screened indicator line; ensure the top circuit components and cable connector remain above ground and dry.

Maintenance: Wipe away dirt or salt deposits from the capacitive probe surface using a soft damp cloth; keep top header pins free of moisture to avoid short circuits.

Essential Long-Life Soil Sensing Module: Position as the preferred soil moisture sensor for smart garden setups, automated potted plant waterers, and indoor greenhouse monitoring networks.

Highlight Capacitive vs. Resistive Advantage: Emphasize how capacitive sensing solves the primary failure point of cheap resistive sensors by eliminating trace degradation and electrode electrolysis.

Recommended Cross-Sell Add-ons: Pair with Soil moisture Sensor/Corrosion Resistance Probe, ACEBOTT Soil Moisture Humidity Sensor Easy-Plug Compatible with ESP32/Arduino, 3-in-1 Integrated Sensor Temperature + Humidity + PH, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Soil Moisture Sensors collection page as your standard capacitive soil moisture sensing module.