Soil Moisture Sensor Module – 1.3M Cable | Waterproof Soil Humidity Sensor for Arduino & ESP32

The Soil Moisture Sensor Module with 1.3M Cable is a reliable soil humidity sensor designed to measure the moisture content of soil for irrigation, gardening, agriculture, and smart farming applications. Featuring a 1.3-meter corrosion-resistant waterproof probe cable, it allows flexible sensor placement while keeping the control module safely away from moisture and harsh environments.

The module provides both analog (AO) and digital (DO) outputs, making it suitable for a wide range of microcontroller platforms, including Arduino, ESP32, ESP8266, Raspberry Pi, and STM32. An onboard LM393 comparator and adjustable potentiometer allow users to set custom moisture thresholds for automatic irrigation, alarms, or monitoring systems.

Ideal for smart irrigation systems, greenhouses, potted plants, and agricultural automation, this sensor delivers accurate soil moisture measurements while offering excellent corrosion resistance and long service life.

Features
1.3-meter waterproof, corrosion-resistant probe cable
Measures soil moisture (soil humidity)
Analog (AO) and Digital (DO) outputs
Adjustable moisture threshold via onboard potentiometer
LM393 comparator for stable digital switching
Operating voltage: 3.3V–12V DC
Low power consumption
High sensitivity and fast response
Easy integration with microcontrollers

Applications
Smart irrigation systems
Precision agriculture
Greenhouse automation
Plant monitoring
Garden watering systems
Hydroponics
Environmental monitoring
IoT farming projects
Educational electronics
DIY automation projects

Compatible With
Arduino Uno
Arduino Nano
Arduino Mega
ESP32
ESP8266
Raspberry Pi
STM32
Other 3.3V and 5V microcontroller platforms

Technical Specifications
Sensor Type: Soil Moisture (Humidity) Sensor
Operating Voltage: 3.3V–12V DC
Working Current: <20mA
Output Type: Analog (AO) and Digital (DO)
Comparator IC: LM393
Probe Cable Length: 1.3 meters
Probe Type: Waterproof, corrosion-resistant
Detection Depth: Approximately 37 mm
Operating Temperature: 10°C–30°C

Package Includes
1 × Soil Moisture Sensor Module
1 × 1.3M Waterproof Soil Moisture Probe
1 × Connection Cable