HS-S09AC Soil Moisture Sensor Module - Analog & Digital Output, PH2.0 Interface
HS-S09AC Soil Moisture Sensor Module - Analog & Digital Output, PH2.0 Interface - Image 2
SKU: SENS-0408
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HS-S09AC Soil Moisture Sensor Module - Analog & Digital Output, PH2.0 Interface

₹192.00 (Inclusive of all taxes)
Out of Stock

The HS-S09AC is a compact soil moisture sensor module compatible with 3.3V and 5V logic systems like Arduino, Raspberry Pi, and ESP32. It provides both analog and digital output signals for flexible integration into environmental monitoring and smart agriculture projects.

Features

  • Dual analog and digital output signals for versatile data acquisition
  • Wide 3.3V to 5.5V DC operating voltage range
  • Compact FR4 PCB construction with a footprint of 23 x 33 mm
  • Fast response time of ≤100 milliseconds for real-time monitoring
  • PH2.0 2/3P terminal wire interface for simple, reliable connections

Out of stock

Description

The HS-S09AC soil moisture sensor operates on the principle of electrical conductivity, where the resistance between its exposed sensing probes varies with the moisture content of the surrounding medium. This change in resistance is converted into a corresponding analog voltage signal and a threshold-based digital signal, providing two methods for system integration.

Designed with a standard FR4 printed circuit board, the module is built for durability in typical indoor and protected outdoor environments. Its low power consumption of ≤20 mA makes it suitable for battery-powered or microcontroller-based systems, enabling precise monitoring of soil hydration levels for irrigation control, plant health studies, and environmental data logging.

Key Features

  • Dual-Signal Output: Provides both a linear analog voltage (A) for precise measurement and a configurable digital (D) signal for threshold-based alerts.
  • Broad Voltage Compatibility: Operates from 3.3V to 5.5V DC, ensuring direct compatibility with 5V Arduino boards and 3.3V Raspberry Pi/ESP32 platforms without level shifting.
  • Fast-Response Sensing: Delivers a rapid sensor response time of ≤100 ms, enabling real-time tracking of moisture changes.
  • Optimized Power Profile: Consumes a maximum of 20 mA, making it ideal for energy-conscious, always-on monitoring applications.
  • Robust PCB Construction: Utilizes a standard FR4 fiberglass PCB substrate for mechanical stability and reliable performance in humid conditions.
  • User-Friendly Interface: Features a keyed PH2.0 2/3P connector for foolproof wiring of power, ground, and signal lines.

Applications

  • Automated drip irrigation and smart gardening systems for precise water management.
  • Environmental monitoring stations tracking soil moisture for agricultural research and climate studies.
  • Plant health and greenhouse automation systems to prevent over/under-watering.
  • Educational kits for teaching principles of sensor interfacing, analog-to-digital conversion, and IoT data logging.
  • Leak detection and moisture alert systems for basements, planters, or storage areas.

Technical Specifications

Manufacturer Part NumberHS-S09-AC
Item TypeSensor Module
Operating Voltage3.3V – 5.5V DC
Output SignalsAnalog (A) & Digital (D)
InterfacePH2.0 2/3P Terminal Wire
Working Current≤ 20 mA
Response Time≤ 100 ms
PCB MaterialFR4
Module Dimensions (W x L)23 mm x 33 mm
Shipping Weight0.01 kg

Frequently Asked Questions

What is the operating voltage range for the HS-S09AC sensor?

The HS-S09AC sensor operates on a wide DC voltage range from 3.3V to 5.5V. This makes it directly compatible with common 5V microcontroller platforms like most Arduino boards, as well as 3.3V logic systems such as Raspberry Pi, ESP32, and STM32 without requiring an external level shifter.

How do I connect and use the analog and digital outputs?

The module provides separate pins for analog (A) and digital (D) output. The analog pin outputs a variable voltage proportional to the sensed moisture, which can be read by an ADC pin on your microcontroller for precise measurement. The digital pin outputs a HIGH/LOW signal based on a preset moisture threshold, useful for simple on/off alerts. Connect power (V), ground (G), and your chosen signal pin using the provided PH2.0 connector.

What is the sensor's response time and power consumption?

The sensor has a fast response time of ≤100 milliseconds, allowing for real-time monitoring of moisture changes. Its power consumption is very low, with a maximum working current of 20 mA, making it suitable for battery-powered or solar-powered IoT and remote monitoring applications where energy efficiency is critical.

Package Includes

  • 1 x HS-S09AC Soil Moisture Sensor Module

Additional Information

Weight 0.01 kg
Dimensions 3.3 × 2.3 cm

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