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

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

The seventh measurement can be configured as either solar radiation in W/m² or illuminance in Lux, depending on the monitoring requirement. Wind speed and direction are measured using ultrasonic transit-time technology with a wind speed range of 0–60 m/s, while rainfall is measured using piezoelectric raindrop impact detection.

The ultrasonic weather sensor provides RS485 Modbus RTU communication for connection to compatible weather station data loggers, PLCs and IoT gateways. Typical applications include automatic weather stations, agriculture, environmental monitoring, airports, ports, transportation and industrial meteorological monitoring.

7-in-1 Ultrasonic Weather Station Sensor Specifications

*Configuration note: Solar radiation and illuminance are alternative seventh parameters. Select one according to the project requirement; they are not supplied together in the standard 7-in-1 configuration.

Seven Meteorological Parameters in One Weather Sensor

This 7-in-1 ultrasonic weather station sensor combines six core meteorological measurements with one selectable light measurement parameter. The configuration provides wind speed, wind direction, temperature, humidity, pressure and rainfall, plus either solar radiation or illuminance.

How the Ultrasonic Weather Station Sensor Measures Wind

The ultrasonic wind measurement system compares the transit time of ultrasonic signals between opposing north-south and east-west transducers. Airflow changes the signal travel time in different directions, allowing the sensor to calculate wind speed and wind direction without conventional rotating wind cups or a mechanical wind vane.

The 0–60 m/s ultrasonic wind sensor provides 0.01 m/s resolution and is suitable for projects requiring a wider wind measurement range from a compact integrated weather sensor.

Piezoelectric Rainfall Measurement

The integrated rainfall channel uses piezoelectric ceramic kinetic detection. Raindrops striking the sensing surface generate impact signals that are processed to calculate rainfall.

Unlike a traditional tipping bucket rain gauge, this measurement method does not require a mechanical tipping mechanism. The sensor provides both cumulative rainfall and real-time rainfall data through the Modbus interface.

Solar Radiation or Illuminance: Which Configuration Should You Choose?

The seventh parameter of the ultrasonic weather station sensor can be configured for either solar radiation or illuminance. These measurements are different and should be selected according to the project requirement.

For crop photosynthesis or PPFD monitoring, use a dedicated PAR sensor rather than converting Lux or W/m² values into PAR.

Key Features

Ultrasonic Weather Sensor RS485 Modbus Integration

The ultrasonic weather sensor with RS485 Modbus can connect to compatible automatic weather station data loggers, PLCs and IoT gateways. The fixed Modbus data structure supports multiple weather and environmental parameters, while unused optional parameter positions remain unused according to the selected configuration.

Available Measurement Data

Wiring

Use the markings on the supplied communication cable as the final wiring reference. Complete and verify all wiring before applying power.

Ultrasonic Weather Station Sensor Dimensions

Installation Recommendations

Install the ultrasonic weather station sensor vertically in an open location with representative airflow, unobstructed rainfall exposure and suitable exposure for the selected solar radiation or illuminance channel. Align the north reference point with geographic north before final fixing.

Automatic Weather Station System Integration

7-in-1 Ultrasonic Weather Station Sensor → RS485 Modbus RTU → Data Logger / PLC / IoT Gateway → Cloud Platform or Private Server

The weather sensor provides measurement data through RS485 Modbus RTU. Remote transmission through 4G, Ethernet, Wi-Fi or LoRaWAN requires a compatible data logger or IoT gateway; these communication functions are not built into the sensor itself.

Agricultural, Environmental and Automatic Weather Station Applications

Thisagricultural weather station sensoris suitable for projects requiring wind, temperature, humidity, pressure, rainfall and solar or light data from one monitoring point. The integrated design also suits environmental, aviation, port, transportation and industrial meteorological systems.

Automatic Weather Stations  •  Agricultural Monitoring  •  Environmental Monitoring  •  Airports & Aviation
Ports & Harbors  •  Transportation Monitoring  •  Industrial Sites  •  Research Stations

6-in-1 vs 7-in-1 Ultrasonic Weather Station Sensor

How to Select the Right 7-in-1 Weather Sensor Configuration

FAQ

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

A1. It measures wind speed, wind direction, air temperature, relative humidity, barometric pressure and rainfall, plus either solar radiation or illuminance as the seventh parameter.

Q2. Can the 7-in-1 sensor measure both solar radiation and illuminance at the same time?

A2. No. Solar radiation and illuminance are alternative configurations. Select one when specifying the 7-in-1 sensor.

Q3. What is the wind speed range?

A3. The ultrasonic wind speed measurement range is 0–60 m/s with a resolution of 0.01 m/s.

Q4. How is rainfall measured?

A4. Rainfall is measured using piezoelectric raindrop impact detection rather than a conventional mechanical tipping bucket.

Q5. Does the ultrasonic weather sensor support RS485 Modbus RTU?

A5. Yes. It provides RS485 Modbus RTU communication at 9600 bps for compatible data loggers, PLCs and IoT gateways.

Q6. Is solar radiation the same as illuminance?

A6. No. Solar radiation is measured in W/m², while illuminance is measured in Lux. Select the measurement that matches the project requirement.

Q7. Can this sensor measure PAR or PPFD?

A7. No. PAR or PPFD measurement requires a dedicated PAR sensor and should not be treated as equivalent to solar radiation or illuminance.

Q8. Does the weather sensor require north alignment?

A8. Yes. Align the north reference point with geographic north so the reported wind direction corresponds correctly to compass direction.

Q9. Does the sensor include built-in 4G, Wi-Fi or LoRaWAN?

A9. No. The sensor provides RS485 data. Remote 4G, Wi-Fi, Ethernet or LoRaWAN communication requires a compatible data logger or IoT gateway.

Q10. What is the main difference between NBL-W-61GUWS and NBL-W-71GUWS?

A10. The 6-in-1 model measures wind speed, wind direction, temperature, humidity, pressure and rainfall. The 7-in-1 NBL-W-71GUWS adds either solar radiation or illuminance as the seventh measurement.

NBL-W-71GUWS Ultrasonic Weather Station Sensor Instruction Manual

NBL-W-71GUWS-7-in-1-Ultrasonic-Weather-Station-Sensor-Instruction-Manual.pdf

Quotation and Model Selection

For quotation and model selection, specify whether the seventh parameter should be solar radiation or illuminance, together with 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 PAR, particulate matter, noise or additional environmental parameters are required, include them with the inquiry so the appropriate weather sensor configuration can be selected.