Raindrops Detection Sensor Module with 12V Relay Module - TTL Compatible
This Raindrops Detection Sensor Module with integrated 12V relay provides a complete solution for automated rain sensing and equipment control. The module features a TTL-compatible digital output via an LM393 comparator and a 12V relay capable of switching up to 250V AC/10A or 30V DC/10A loads, making it suitable for Arduino, Raspberry Pi, and industrial control systems.
Features
- Integrated 12V relay module for direct load switching (250V AC/10A, 30V DC/10A).
- High-quality FR-4 PCB rain collector with nickel-plated surface for oxidation resistance and long-term conductivity.
- LM393 wide-voltage comparator provides clean TTL-level digital output signal with adjustable sensitivity via onboard potentiometer.
- Includes power and output LED indicators for immediate operational status feedback.
- Compact design with mounting holes for easy installation in weather stations, irrigation controllers, or outdoor enclosures.
Out of stock
The Raindrops Detection Sensor Module operates on the principle of measuring the change in parallel resistance across its nickel-plated PCB traces as water accumulates. This resistance change is conditioned by the onboard LM393 comparator to produce a digital TTL signal. The analog output (AO) provides a variable voltage proportional to the surface wetness, enabling measurement of rainfall intensity.
The integrated 12V relay module allows the sensor to directly control high-power loads such as motors, solenoids, or alarm systems based on the presence of rain. The module is designed for reliable operation in varied weather conditions, with a robust FR-4 construction ensuring durability. It is compatible with 5V and 3.3V logic microcontrollers, facilitating integration into automated weather monitoring, smart agriculture, and industrial process control systems.
Additional Information
| Weight | 0.015 kg |
|---|---|
| Dimensions | 5 × 2.6 cm |
