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Soil Moisture Sensor Module
Accurately monitor soil moisture levels for smart irrigation, automated plant care, and agricultural IoT projects. This reliable Soil Moisture Sensor Module from The Engineer Store, Bengaluru, delivers real-time analog and digital output for seamless integration with Arduino, ESP32, Raspberry Pi, and other microcontrollers. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support included.
Specifications
| Module Type | Soil Moisture / Hygrometer Sensor Module |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Analog (AO) & Digital (DO) |
| Comparator IC | LM393 Dual Comparator |
| Sensitivity Adjustment | Onboard Potentiometer (Digital Threshold) |
| Indicator LEDs | Power LED + Digital Output LED |
| Probe Material | Nickel-Plated / Tin-Plated Copper Prongs |
| Probe Dimensions | Approx. 60mm x 20mm |
| PCB Dimensions | Approx. 30mm x 16mm |
| Interface Pins | VCC, GND, AO, DO (4-Pin Header) |
| Operating Current | <= 35mA |
| Detection Depth | Recommended 30-50mm insertion |
| Compatibility | Arduino, ESP8266, ESP32, Raspberry Pi, STM32, PIC |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Dual Output Modes: Analog output (AO) provides variable voltage proportional to moisture level; Digital output (DO) gives a clean HIGH/LOW signal based on adjustable threshold.
- LM393 Comparator Onboard: Ensures stable, noise-resistant digital output with precise threshold triggering for reliable automation.
- Adjustable Sensitivity: Built-in potentiometer lets you fine-tune the digital switching point to match different soil types and moisture requirements.
- Wide Voltage Compatibility: Operates seamlessly at 3.3V or 5V, making it plug-and-play with virtually any development board.
- Visual Status Indicators: Power LED confirms module is active; output LED illuminates when digital threshold is triggered for quick visual debugging.
- Corrosion-Resistant Probes: Nickel/tin-plated fork-style prongs resist oxidation for extended field use and consistent readings.
- Compact & Lightweight: Small PCB footprint and slim probe design allow easy embedding in planters, garden beds, or agricultural setups.
- Simple 4-Pin Connection: VCC, GND, AO, and DO - no complex wiring or external components needed to get started.
Why Choose This Soil Moisture Sensor Module?
- 100% authentic module sourced from trusted, authorized suppliers
- Tested and quality-checked at our Bengaluru warehouse before dispatch
- 1-5 day shipping, 7-8 day delivery across India; same-day delivery available in Bengaluru
- Expert technical support to help with wiring, coding, and calibration
- Ideal for beginners and professionals - well-documented with community resources
- Affordable price point perfect for single projects or bulk deployments
How It Works
The Soil Moisture Sensor Module operates on the principle of electrical conductivity. The two exposed prongs act as a variable resistor whose resistance changes with the water content in the surrounding soil. Wet soil conducts electricity more easily (lower resistance), while dry soil has higher resistance. The onboard circuitry converts this resistance change into a readable voltage signal. The analog output (AO) delivers a continuous voltage (typically 0-4.2V at 5V supply) that you can map to a 0-1023 range using an ADC - giving you a granular moisture percentage. The digital output (DO) passes through the LM393 comparator, which compares the sensor reading against the threshold set by the potentiometer, outputting HIGH or LOW accordingly. This makes it easy to trigger relays, buzzers, or pump motors without any additional code logic.
Project Ideas
- Automatic Plant Watering System: Pair with an Arduino and a 5V relay module to activate a water pump when soil dries below your set threshold - keep your plants perfectly hydrated while you're away.
- Smart Garden IoT Dashboard: Connect to an ESP32 or ESP8266, push moisture data to Blynk, ThingSpeak, or a custom MQTT broker, and monitor your garden remotely from your phone.
- Agricultural Monitoring Network: Deploy multiple sensors across a farm field, aggregate data via LoRa or Zigbee, and build a precision irrigation system that saves water and boosts crop yield.
- Greenhouse
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Soil Moisture Sensor Module Online in India
Purchase the Soil Moisture Sensor Module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Soil Moisture Sensor Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Soil Moisture Sensor Module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Soil Moisture Sensor Module
Accurately monitor soil moisture levels for smart irrigation, automated plant care, and agricultural IoT projects. This reliable Soil Moisture Sensor Module from The Engineer Store, Bengaluru, delivers real-time analog and digital output for seamless integration with Arduino, ESP32, Raspberry Pi, and other microcontrollers. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support included.
Specifications
| Module Type | Soil Moisture / Hygrometer Sensor Module |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Analog (AO) & Digital (DO) |
| Comparator IC | LM393 Dual Comparator |
| Sensitivity Adjustment | Onboard Potentiometer (Digital Threshold) |
| Indicator LEDs | Power LED + Digital Output LED |
| Probe Material | Nickel-Plated / Tin-Plated Copper Prongs |
| Probe Dimensions | Approx. 60mm x 20mm |
| PCB Dimensions | Approx. 30mm x 16mm |
| Interface Pins | VCC, GND, AO, DO (4-Pin Header) |
| Operating Current | <= 35mA |
| Detection Depth | Recommended 30-50mm insertion |
| Compatibility | Arduino, ESP8266, ESP32, Raspberry Pi, STM32, PIC |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Dual Output Modes: Analog output (AO) provides variable voltage proportional to moisture level; Digital output (DO) gives a clean HIGH/LOW signal based on adjustable threshold.
- LM393 Comparator Onboard: Ensures stable, noise-resistant digital output with precise threshold triggering for reliable automation.
- Adjustable Sensitivity: Built-in potentiometer lets you fine-tune the digital switching point to match different soil types and moisture requirements.
- Wide Voltage Compatibility: Operates seamlessly at 3.3V or 5V, making it plug-and-play with virtually any development board.
- Visual Status Indicators: Power LED confirms module is active; output LED illuminates when digital threshold is triggered for quick visual debugging.
- Corrosion-Resistant Probes: Nickel/tin-plated fork-style prongs resist oxidation for extended field use and consistent readings.
- Compact & Lightweight: Small PCB footprint and slim probe design allow easy embedding in planters, garden beds, or agricultural setups.
- Simple 4-Pin Connection: VCC, GND, AO, and DO - no complex wiring or external components needed to get started.
Why Choose This Soil Moisture Sensor Module?
- 100% authentic module sourced from trusted, authorized suppliers
- Tested and quality-checked at our Bengaluru warehouse before dispatch
- 1-5 day shipping, 7-8 day delivery across India; same-day delivery available in Bengaluru
- Expert technical support to help with wiring, coding, and calibration
- Ideal for beginners and professionals - well-documented with community resources
- Affordable price point perfect for single projects or bulk deployments
How It Works
The Soil Moisture Sensor Module operates on the principle of electrical conductivity. The two exposed prongs act as a variable resistor whose resistance changes with the water content in the surrounding soil. Wet soil conducts electricity more easily (lower resistance), while dry soil has higher resistance. The onboard circuitry converts this resistance change into a readable voltage signal. The analog output (AO) delivers a continuous voltage (typically 0-4.2V at 5V supply) that you can map to a 0-1023 range using an ADC - giving you a granular moisture percentage. The digital output (DO) passes through the LM393 comparator, which compares the sensor reading against the threshold set by the potentiometer, outputting HIGH or LOW accordingly. This makes it easy to trigger relays, buzzers, or pump motors without any additional code logic.
Project Ideas
- Automatic Plant Watering System: Pair with an Arduino and a 5V relay module to activate a water pump when soil dries below your set threshold - keep your plants perfectly hydrated while you're away.
- Smart Garden IoT Dashboard: Connect to an ESP32 or ESP8266, push moisture data to Blynk, ThingSpeak, or a custom MQTT broker, and monitor your garden remotely from your phone.
- Agricultural Monitoring Network: Deploy multiple sensors across a farm field, aggregate data via LoRa or Zigbee, and build a precision irrigation system that saves water and boosts crop yield.
- Greenhouse
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Soil Moisture Sensor Module Online in India
Purchase the Soil Moisture Sensor Module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Soil Moisture Sensor Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Soil Moisture Sensor Module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.