1. Introduction
The RS YUX N01 H Rain Snow Transmitter Sensor is a qualitative measuring device designed to detect the presence of rain or snow in outdoor environments. It provides a rapid response time of less than or equal to 0.5 seconds, making it suitable for various environmental monitoring and control applications. This sensor features an optional automatic heating function to ensure reliable operation in cold and humid conditions.
2. Key Features
- High Sensitivity: Utilizes unique AC measurement technology to prevent oxidation of the induction plate, ensuring long-term sensitivity. The sensor's sensitivity is adjustable for flexible application.
- Automatic Heating Function: Prevents freezing and condensation on the sensor plate in conditions where the temperature is below 0 degrees Celsius for extended periods and humidity is high.
- Strict Temperature Control: The heating temperature is precisely controlled within 40℃ (default) to prevent overheating and prolong the sensor's service life.
- Robust Protection: Features an IP68 protection grade design, allowing for reliable long-term outdoor operation.
- Configurable Alarms: Alarm and reset delays can be set to prevent frequent on-site alarms, enhancing system stability.
3. Specifications
| Parameter | Value |
|---|---|
| Item Type | Rain and Snow Sensor |
| Model | RS YUX N01 H |
| Material | Plastic |
| Weight | Approx. 153g / 5.40oz |
| Dimensions (L x W x H) | 89 x 64 x 38mm / 3.50 x 2.52 x 1.50in |
| Power Supply | 10-30V DC |
| Normal Working Power | 0.4W |
| Storage Environment Temperature | -40℃ to 80℃ |
| Output Signal | 485 Mode |
| Parameter Configuration | Software setting |
| Default Address | 01 |
| Supported Function Codes | 03, 06 |
| Maximum Heating Temperature | 40℃ |
| Output Relay Load Capacity | 250VAC 1A, 30VDC 1A |
| Origin | Mainland China |
| Sensor Type | Vibration sensor (as per product properties, though primarily for rain/snow detection) |
Dimensional Drawing:

This diagram illustrates the precise dimensions of the sensor, crucial for planning installation.
4. Package Contents
Upon unpacking, please verify that all the following items are included:
- 1 x Rain Snow Transmitter Sensor (Model: RS YUX N01 H)
- 4 x Expansion Plugs
- 4 x Self-Tapping Screws
- 1 x Instruction Manual
Included Components:

The sensor and its complete set of mounting hardware are provided for immediate installation.
5. Setup and Installation
5.1 Installation Angle
For optimal performance and accurate detection, the sensor should be installed with a slight tilt. An installation angle of approximately 15 degrees from the horizontal level is recommended to facilitate water runoff and prevent false readings from standing water.

Ensure the sensor is mounted with a 15-degree incline for effective drainage.
5.2 Wiring Instructions
The sensor operates in 485 mode and requires a 10-30V DC power supply. Connect the wires according to the following sequence:
- Brown Wire: VCC (Power Supply Positive)
- Black Wire: GND (Ground)
- Yellow Wire: A (485 Data Line A)
- Blue Wire: B (485 Data Line B)

Carefully connect the wires to the appropriate terminals as indicated.
6. Operating Instructions
6.1 Rain and Snow Detection
Once powered, the sensor continuously monitors its induction plate for the presence of moisture. When rain or snow is detected, the sensor will output a signal via its 485 interface. The response time for detection is very fast, typically within 0.5 seconds.

The sensor accurately detects rainfall, providing timely data for environmental monitoring.
6.2 Automatic Heating Function
The sensor is equipped with an automatic heating function to ensure reliable operation in cold climates. This function activates when the ambient temperature drops below 0 degrees Celsius, especially in high humidity conditions, to prevent ice formation or condensation on the detection surface. The heating element maintains the sensor plate temperature at a maximum of 40℃ to prevent damage and ensure longevity.

The automatic heating ensures continuous snow detection even in freezing conditions.
6.3 Parameter Configuration
The sensor's parameters, including sensitivity and alarm/reset delays, can be configured via software. Refer to the specific software documentation for detailed instructions on how to connect and adjust these settings using the 485 communication interface.
7. Maintenance
The RS YUX N01 H sensor is designed for low maintenance due to its robust construction and advanced features:
- Self-Cleaning Design: The recommended 15-degree installation angle aids in natural cleaning by allowing water to run off, reducing the accumulation of dirt and debris.
- Oxidation Prevention: The AC measurement technology actively prevents oxidation of the induction plate, maintaining sensor accuracy over time.
- Temperature Controlled Heating: The strictly controlled heating mechanism not only prevents freezing but also contributes to the overall longevity of the sensor by avoiding excessive heat.
- IP68 Protection: The high ingress protection rating ensures the internal components are shielded from dust and water, minimizing the need for internal cleaning or protection.
Periodically inspect the sensor's surface for any heavy accumulation of dirt, leaves, or other obstructions that might impede detection. Gently clean the surface with a soft, damp cloth if necessary. Avoid using abrasive materials or harsh chemicals.
8. Troubleshooting
If you encounter issues with your Rain Snow Transmitter Sensor, consider the following:
- No Detection/Inaccurate Readings:
- Check power supply (10-30V DC) and wiring connections (VCC, GND, A, B).
- Ensure the sensor surface is clean and free from obstructions.
- Verify the installation angle is approximately 15 degrees for proper drainage.
- Adjust sensor sensitivity via software if readings are consistently too high or too low for actual conditions.
- Frequent False Alarms:
- Adjust the alarm and reset delay settings through the configuration software to filter out transient events.
- Ensure the sensor is not exposed to splashing water or other non-rain/snow moisture sources.
- Heating Function Not Working:
- Confirm ambient temperature is below 0℃, as heating activates under these conditions.
- Check power supply.
If problems persist after performing these checks, please consult the seller or a qualified technician for further assistance.
9. User Tips
While no specific user reviews or Q&A were available, general tips for environmental sensors include:
- Optimal Placement: Install the sensor in an open area, away from overhanging structures, trees, or other objects that could block rain/snow or cause dripping, leading to inaccurate readings.
- Cable Management: Secure all wiring to prevent damage from wind, animals, or environmental factors. Use waterproof connectors and conduits where necessary.
- Regular Checks: Periodically check the sensor's physical condition and connections, especially after severe weather events.
10. Warranty and Support
For information regarding the warranty period, terms, and conditions for your RS YUX N01 H Rain Snow Transmitter Sensor, please refer to the documentation provided at the time of purchase or contact your seller directly. Technical support and service inquiries should also be directed to your point of purchase or the manufacturer's authorized service center.





