The Renke RS-WS-N01-YM-1 is a professional-grade leaf wetness sensor designed to accurately simulate the wetness state of a plant leaf. It measures the presence and duration of moisture on its surface, which is a critical parameter for monitoring plant health, disease forecasting, and optimizing irrigation schedules. Featuring an RS485 communication interface, this sensor is built for reliable, long-distance data transmission in demanding agricultural and meteorological environments.
✨ Key Features and Benefits
- High-sensitivity detection of moisture, dew, and frost on the surface
- Simulates the dielectric properties of a real plant leaf
- RS485 communication for robust, long-distance data transmission
- IP67 waterproof and dustproof rating for harsh outdoor conditions
- Wide operating temperature range of -40℃ to +60℃
- Accurate and stable output signal
- Ideal for smart agriculture, pest control, and disease prevention systems
🔧 Material and Construction Details
| Component | Material | Description |
|---|---|---|
| Sensor Plate | Epoxy Resin PCB | Mimics the thermal and electrical properties of a plant leaf |
| Housing | Durable Plastic | Protects the internal electronics and provides mounting points |
| Connector | Waterproof M12 Connector | Ensures a secure and sealed connection |
| Cable | Weatherproof Cable | Resistant to UV rays and environmental degradation |
📚 Use Cases and Applications
- Agricultural disease warning systems
- Smart farming and precision agriculture
- Plant disease forecasting models
- Environmental research and meteorological studies
- Automated irrigation and water management
- Outdoor weather and climate monitoring
- Horticultural research and crop management
🔍 Technical Specifications
| Specification | Details |
|---|---|
| Operating Voltage | 5V to 30V DC |
| Output Signal | RS485 (Modbus RTU protocol) |
| Measurement Range | Dry to Wet (Analog equivalent output) |
| Operating Temperature | -40℃ to +60℃ |
| Protection Rating | IP67 |
| Accuracy | < 2% of full scale |
| Power Consumption | < 0.1W |
🔌 Connection Diagram
| Pin Name | Function | Wiring Color |
|---|---|---|
| VCC | Power (+) | Red |
| GND | Power (-) | Black |
| RS485 A | Data A | Green |
| RS485 B | Data B | Yellow |
🧼 Calibration & Maintenance
The sensor is factory-calibrated and typically does not require field calibration. For accurate data, mount the sensor in a representative location within the crop canopy to simulate a leaf's environment. The IP67 rating ensures the sensor is well-protected from dust and water, reducing the need for maintenance. Periodically inspect the surface for excessive dirt or residue that could interfere with readings and gently clean it with a soft cloth.
⚠ Safety Information
Ensure the sensor is powered off before connecting or disconnecting wires. While the sensor is robust, avoid exposing it to excessive physical force or corrosive chemicals. The IP67 rating ensures protection against water immersion up to 1 meter for 30 minutes, but it is not intended for continuous submersion. Install the sensor in a stable location where it will not be easily damaged by wind or other environmental factors.
👍👎 Pros & Cons
| Pros | Cons |
|---|---|
| Professional-grade, accurate and reliable readings | Higher cost compared to basic resistive sensors |
| IP67 rating for long-term outdoor use | Requires an RS485 converter for most standard microcontrollers |
| RS485 for long-distance, noise-free data transmission | Output data may require specific software libraries for decoding |
| Specialized design for agricultural applications | Does not measure soil moisture or other parameters |
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