5Pcs Soil Moisture Sensor Module with Probe, LM393 Comparator Board, Analog and Digital Output, 3.3V–5V Soil Humidity Detection for arduino MCU Projects

Product Description This module is designed to detect soil moisture levels using a resistive sensing probe. The probe measures changes in soil conductivity caused by varying water content. The sensor board includes an LM393 comparator for digital threshold detection. An analog output pin provides continuous voltage signal corresponding to soil moisture level. Sensitivity can be adjusted using the onboard potentiometer to set the switching threshold. The module operates within a DC voltage range of 3.3V to 5V. It can be connected directly to microcontrollers for irrigation monitoring and environmental sensing projects. The probe and control board are connected via a two-wire interface for convenient installation.  Technical Specifications Sensor Type: Resistive soil moisture sensor Operating Voltage: DC 3.3V – 5V Output Type: Analog output (AO) and digital output (DO) Comparator Chip: LM393 Sensitivity Adjustment: Onboard potentiometer Interface Pins: VCC, GND, AO, DO Detection Principle: Soil conductivity measurement Probe Length: Approx. 60mm Control Board Size: Approx. 32mm × 14mm Connection Method: Two-wire probe connection

• Soil moisture detection probe for measuring water content in soil.
• Provides both analog output and digital threshold output.
• Onboard LM393 comparator enables adjustable sensitivity.
• Supports 3.3V to 5V operating voltage for microcontroller compatibility.
• Detachable probe design allows easy replacement and maintenance.