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Raindrops Detection Sensor Module with 5V Relay Module
The Raindrops Detection Sensor Module with 5V Relay Module is a value-for-money rain sensors designed for everyday users. It features Shipping Weight: 0.02 kg and Shipping Dimensions: 6 × 5 × 4 cm.
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About This Product
The Raindrops Detection Sensor Module with 5V Relay Module is a value-for-money rain sensors designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Shipping Weight: 0.02 kg
- Shipping Dimensions: 6 × 5 × 4 cm
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The Raindrop Detection Sensor Module detects the presence of water using a conductive PCB sensing plate and a comparator-based control module. When water droplets bridge the exposed conductive traces, the electrical resistance between them decreases.
This change alters the sensor's analog output voltage and can also trigger a digital output when a user-adjustable threshold is exceeded. The analog output provides an indication of the sensor plate's wetness level, while the digital output is useful for rain/no-rain detection applications. The module is intended for qualitative moisture detection rather than accurate rainfall measurement.
Features:
- Detects presence of rain and provides a relative wetness indication
- Analog output varies with conductivity changes on the sensing surface
- PCB-based resistive rain detection grid
- Compatible with Arduino, ESP32, Raspberry Pi and other microcontrollers
- Adjustable detection threshold using onboard potentiometer (LM393 comparator)
- Compact, low-power sensor module suitable for embedded applications
Specifications:
- Item Type : Raindrops Detection Sensor
- Comparator IC: LM393
- Output Type: Analog (voltage) + Digital (TTL)
- Sensor Board Size: 54mm × 40mm × 1.5mm
- Control Board Size: 32mm × 15mm × 9mm
- Operating Voltage: 5V DC
- Relay Output: 5V SPDT relay
- Sensor Type: Resistive rain detection plate
- Output Signal: Digital HIGH/LOW + relay switching
- Trigger Adjustment: Variable sensitivity potentiometer
- Load Capacity: Typically up to 10A @ 250V AC / 10A @ 30V DC (relay dependent)
- Interface: 3-pin (VCC, GND, DO/AO)
- Sensitivity Control: Potentiometer adjustable
- Material: FR-4 double-sided PCB
- Mounting: Pre-drilled bolt holes for easy installation
- Diamentions : 50 x 26 x 20
- Weight : 15g
Package Includes:
1 x Raindrops Detection Sensor Module with 5V Relay Module
1 x Control Board with LM393 Voltage Comparator
1 x A 2-Wire Dupont Cable
