Soil Moisture Hygrometer Sensor

Resistive Moisture Probing Matrix: Features dual exposed PCB prongs that measure electrical resistance variations to quantify relative soil volumetric moisture levels.

Dual Signal Output Modes: Equipped with an Analog Output (AO) pin for continuous voltage tracking and a Digital Output (DO) pin for direct logic switching.

Onboard Signal Comparator: Integrates an LM393 differential voltage comparator IC to provide clean, noise-free digital signal switching.

Adjustable Threshold Sensitivity: Features an onboard precision potentiometer for adjusting custom digital switching trigger levels for automated watering systems.

Integrated LED Status Telemetry: Outfitted with an onboard power LED and a digital switching status LED for instant visual indication during circuit testing and deployment.

Board Material: Flame-retardant FR-4 PCB breakout with tinned sensing prongs and integrated LM393 control board.

Technical Specifications:

Sensor Type: Resistive Soil Moisture / Hygrometer Sensor Module.

Operating Supply Voltage: 3.3V – 5.0V DC.

Signal Outputs: Dual Analog (AO) + Digital Switching (DO).

Comparator IC: LM393 Differential Comparator.

Board Color: Red Control PCB & Silver Tinned Sensing Probe with Interconnect Wire.

Usage Advice: Connect the probe module to the control board; wire VCC (3.3V-5V) and GND to your microcontroller, then sample AO for analog readings or DO for direct relay control.

Maintenance: Keep the top control electronics protected from moisture; clean soil deposits off the probe prongs periodically to prevent inaccurate readings caused by buildup.

Essential DIY Gardening Component: Position as a versatile, low-cost entry sensor for automated plant watering systems, Arduino garden kits, and home botany projects.

Highlight Dual Analog & Digital Telemetry: Emphasize how having both continuous analog monitoring and simple digital threshold switching provides high flexibility for both novice and advanced setups.

Recommended Cross-Sell Add-ons: Pair with Analog Capacitive Soil Moisture Sensor, Soil moisture Sensor/Corrosion Resistance Probe, ACEBOTT Soil Moisture Humidity Sensor Easy-Plug Compatible with ESP32/Arduino, and ESD antistatic mat 50x40CM PCB Welding Mat.

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