RS-YUX-N01R01-H Rain and Snow Sensor - RS485

RS-YUX-N01R01-H Rain and Snow Sensor - RS485

The RS-YUX-N01R01-H Rain and Snow Sensor - RS485 is a meteorological sensor with automatic heating and RS485 Modbus RTU output, designed to detect the presence of rain or snow in outdoor environments. The sensor does not measure precipitation in millimeters; its primary function is to quickly detect the presence or absence of rain/snow in the environment and transmit this information to an automation or monitoring system. The detection response time is ≤0.5 seconds.

The sensing surface features an electrode structure that utilizes the electrical conductivity of rainwater. The AC measurement technology used instead of traditional continuous DC measurement helps maintain long-term sensitivity by reducing the electrochemical oxidation of the electrodes on the sensor surface. Detection sensitivity can be adjusted via software.

Modbus RTU protocol is used over RS485 communication. The default device address is 01, and Modbus function codes 03 and 06 are supported. Sensor parameters can be configured via software.

Features

• Supply Voltage: DC 10–30V
• Normal Power Consumption: 0.4W
• Active Heating Power Consumption: 7.5W
• Measurement Type: Qualitative precipitation detection
• Detected Status: Rain/snow present/absent
• Precipitation Amount Measurement: None
• Response Time: ≤0.5 seconds
• Detection Technology: Conductivity-based electrode surface
• Measurement Technique: AC measurement technology that reduces electrode oxidation
• Sensitivity: Adjustable
• Output: RS485
• Protocol: Modbus RTU
• Default Modbus Address: 01
• Supported Modbus Functions: 03 / 06
• Parameter Setting: Via Software
• Automatic Heating: Yes
• Default Heating Start Temperature: <15°C
• Maximum Heating Temperature: 40°C
• Operating Temperature: -40°C ~ +60°C
• Storage Temperature: -40°C ~ +80°C
• Protection Class: IP68