NBL-W-71MUWS 7-in-1 Ultrasonic Weather Station Sensor

The NBL-W-71MUWS 7-in-1 ultrasonic weather station sensor integrates wind speed, wind direction, air temperature, relative humidity, barometric pressure, illuminance and rainfall measurement in one compact outdoor unit.

Wind speed and direction are measured using ultrasonic technology, while rainfall is detected using piezoelectric raindrop impact measurement. Integrated temperature, humidity, pressure and illuminance sensing provides seven meteorological parameters from a single installation point.

The sensor provides RS485 Modbus RTU output for connection to compatible weather station data loggers, PLCs and IoT gateways. It is suitable for automatic weather stations, agriculture, environmental monitoring, ports, transportation, research and other distributed meteorological monitoring systems.

7-in-1 Ultrasonic Weather Station Sensor Specifications

Seven Meteorological Parameters in One Sensor

The NBL-W-71MUWS is a wind speed direction temperature humidity pressure rainfall light sensor designed for applications that require seven meteorological measurements from one compact monitoring point.

Ultrasonic Wind Measurement

The wind sensing section measures the transit time of ultrasonic signals between opposing transducers. Airflow changes the signal travel time in different directions, allowing the sensor to calculate wind speed and wind direction.

Because wind measurement does not depend on rotating wind cups or a mechanical wind vane, the ultrasonic design eliminates the conventional moving components used for wind measurement.

Piezoelectric Rainfall Measurement

The integrated rainfall channel uses piezoelectric ceramic kinetic rainfall detection. When raindrops strike the upper sensing surface, the impact produces a signal that is processed to determine rainfall.

This method does not use the mechanical tipping mechanism found in a conventional tipping bucket rain gauge, allowing rainfall measurement to be integrated into the compact multi-parameter weather sensor.

Illuminance vs Solar Radiation vs PAR

The integrated light channel measures illuminance in Lux. Illuminance, solar irradiance and PAR are different measurement quantities and should not be treated as interchangeable when selecting a weather or agricultural sensor.

RS485 Modbus RTU Integration

The ultrasonic weather sensor with RS485 Modbus can connect to compatible PLCs, automatic weather station data loggers and IoT gateways. Multiple meteorological measurements are available through one digital communication interface.

RS485 Connection and Mounting Interface

The bottom of the sensor provides the electrical connection and mechanical mounting interface. Verify the supplied cable markings before applying power and confirm that RS485 A and B are connected correctly to the receiving device.

When multiple compatible Modbus sensors share one RS485 bus, configure a unique communication address for each device.

Typical Weather Monitoring System

NBL-W-71MUWS → RS485 Modbus RTU → Data Logger / PLC / IoT Gateway → Cloud Platform or Private Server

The NBL-W-71MUWS itself provides sensor measurements through RS485. Remote transmission through 4G, Ethernet, Wi-Fi or LoRaWAN requires a compatible data logger or IoT gateway with the required communication function.

Installation Recommendations

Correct installation is important because the sensor simultaneously measures wind, rainfall, temperature, humidity, pressure and illuminance. Select a location that provides representative exposure for the required meteorological parameters.

Agricultural, Environmental and Automatic Weather Station Applications

The NBL-W-71MUWS can be used as an agricultural weather station sensor, an integrated sensor for automatic weather stations, or a multi-parameter weather sensor where wind speed, wind direction, temperature, humidity, barometric pressure, rainfall and illuminance need to be monitored from one location.

5-in-1 vs 6-in-1 vs 7-in-1 Ultrasonic Weather Sensors

FAQ

Q1. What does the NBL-W-71MUWS 7-in-1 ultrasonic weather station sensor measure?

A1. It measures wind speed, wind direction, air temperature, relative humidity, barometric pressure, illuminance and rainfall.

Q2. How are wind speed and wind direction measured?

A2. The sensor uses ultrasonic transit-time measurement to calculate wind speed and wind direction without conventional rotating wind cups or a mechanical wind vane.

Q3. How is rainfall measured?

A3. The integrated rainfall channel uses piezoelectric raindrop impact detection rather than a conventional mechanical tipping bucket.

Q4. Does the NBL-W-71MUWS support RS485 Modbus?

A4. Yes. It provides RS485 communication using the Modbus RTU protocol at 9600 bps.

Q5. Is the illuminance measurement the same as solar radiation?

A5. No. The integrated light channel measures illuminance in Lux. Solar irradiance in W/m² requires a pyranometer or dedicated solar radiation sensor.

Q6. Does it measure PAR or PPFD?

A6. No. Projects requiring PAR or PPFD in µmol/m²/s should use a dedicated PAR sensor.

Q7. Can the sensor connect directly to a PLC or weather station data logger?

A7. Yes. A compatible PLC, data logger or IoT gateway with an RS485 Modbus RTU interface can read the sensor measurements.

Q8. Does the sensor include built-in 4G, Wi-Fi or LoRaWAN?

A8. No. The sensor provides RS485 data. Remote 4G, Wi-Fi, Ethernet or LoRaWAN transmission requires a compatible data logger or IoT gateway.

Q9. What is the difference between the 6-in-1 and 7-in-1 weather sensors?

A9. Both configurations include wind speed, wind direction, temperature, humidity, pressure and rainfall. The 7-in-1 NBL-W-71MUWS additionally measures illuminance in Lux.

Q10. Is the NBL-W-71MUWS suitable for agricultural weather monitoring?

A10. Yes. It provides seven meteorological parameters for agricultural weather monitoring. Soil moisture, soil temperature, solar radiation, PAR and other crop or soil parameters require additional sensors when needed.

NBL-W-71MUWS Instruction Manual

NBL-W-71MUWS-Micrometeorological-Sensor-Operating-Instructions.pdf

Quotation and Model Selection

For quotation and model selection, specify the required quantity, power supply, cable length, installation environment and the PLC, data logger or IoT gateway that will receive the RS485 Modbus data. If the project also requires solar radiation, PAR, soil sensors, particulate matter, remote communication or a complete automatic weather station, include these requirements with the inquiry.