Generic 12V Soil Hygrometer Humidity Detection Module with Relay - Automatic Watering Device
Generic 12V Soil Hygrometer Humidity Detection Module with Relay - Automatic Watering Device - Image 2
Generic 12V Soil Hygrometer Humidity Detection Module with Relay - Automatic Watering Device - Image 3
Generic 12V Soil Hygrometer Humidity Detection Module with Relay - Automatic Watering Device - Image 4
SKU: SENS-0378
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Generic 12V Soil Hygrometer Humidity Detection Module with Relay - Automatic Watering Device

₹135.00 (Inclusive of all taxes)
Out of Stock

This 12V DC soil moisture detection module integrates a high-current relay for direct control of watering systems. It provides a digital high/low output signal based on soil humidity conditions, making it suitable for automated garden irrigation, greenhouse monitoring, and DIY plant care projects.

Features

  • 12V DC powered soil moisture detection module with integrated relay.
  • High-power relay supports loads up to 250V AC/10A or 30V DC/10A (1500W).
  • Outputs a digital high signal for dry soil and a low signal for moist soil.
  • Built-in 3–5 second delay function prevents relay chatter and improves stability.
  • Includes a corrosion-resistant soil moisture probe with a 20cm cable.

Out of stock

Description

The module operates by measuring the electrical conductivity between the two prongs of its soil probe, which varies with moisture content. An onboard comparator circuit interprets this signal, triggering the relay output. The integrated high-quality relay allows direct switching of pumps, valves, or solenoids without an additional driver circuit, simplifying system design.

Designed for reliability in humid environments, the module features a plastic housing for the electronics and a durable probe. The 3–5 second delay function ensures stable operation by preventing rapid on/off cycling during marginal moisture conditions, which is critical for protecting pumps and ensuring effective watering cycles.

Key Features

  • 12V DC operation with >100mA input current requirement.
  • High-capacity relay output for direct control of AC/DC loads.
  • Stable digital output logic (High for dry, Low for wet) for easy microcontroller interfacing.
  • Built-in signal delay (approx. 3–5 seconds) enhances operational stability and protects connected equipment.
  • Compact PCB design (approx. 4.9 x 2.6 x 1.7 cm) for easy integration into enclosures.
  • Includes a robust soil moisture probe with 20cm connecting cable.
  • Optimized performance-to-cost ratio for automated gardening and agricultural applications.

Applications

  • Automated drip irrigation or sprinkler system control for home gardens and greenhouses.
  • Soil moisture monitoring for potted plants and indoor horticulture setups.
  • DIY agricultural automation projects requiring direct high-power switching.
  • Educational demonstrations of relay-based control and soil sensor principles.

Technical Specifications

Item TypeSoil Hygrometer Humidity Detection Module
Power Supply12V DC
Input Current> 100 mA
Relay Load Capacity (AC)250V AC, 10A
Relay Load Capacity (DC)30V DC, 10A
Maximum Supported Load1500W
Output SignalDigital High/Low (Dry=High, Wet=Low)
Delay FunctionApprox. 3–5 Seconds
Module Dimensions (LxWxH)Approx. 4.9 x 2.6 x 1.7 cm
Probe DimensionsApprox. 6.5 x 2.0 x 0.5 cm
Cable Length20 cm
Weight19 g
Primary MaterialPlastic + Electronic Components

Frequently Asked Questions

What is the output signal of this soil moisture module?

The module provides a simple digital output signal. When the soil is dry, it outputs a high-level signal (typically close to the supply voltage). When sufficient moisture is detected, the output switches to a low-level signal (near 0V). This signal can directly drive the onboard relay or be read by a microcontroller.

What loads can the integrated relay control?

The high-quality relay is rated for 10A at 250V AC (1500W) or 10A at 30V DC. This allows it to directly switch most small to medium-sized water pumps, solenoid valves, or irrigation controllers commonly used in garden automation, without requiring an additional driver circuit.

How does the 3–5 second delay function work?

The delay function prevents the relay from chattering or cycling rapidly when the soil moisture is near the detection threshold. After a change in soil condition is detected, the module waits approximately 3 to 5 seconds before changing the relay state. This protects connected pumps and ensures more stable, effective watering cycles.

Package Includes

  • 1 x 12V Soil Hygrometer Humidity Detection Module
  • 1 x Soil Moisture Probe
  • 1 x Jumper Wire

Additional Information

Weight 0.019 kg
Dimensions 4.9 × 2.6 × 1.7 cm

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