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Ultrasonic 9-in-1 RS485 Weather Sensor

SKU: SEN0658

The 9-in-1 Meteorological Monitoring Sensor is a compact integrated device measuring 9 parameters: ultrasonic wind speed/direction, air temp, relative humidity, atmospheric pressure, light intensity, noise, PM2.5, PM10. Its ultrasonic wind sensor (4 probes) has built-in error recognition for low discrete errors in strong winds, no moving parts/calibration, accurate data. The ABS shell is UV-resistant/waterproof, adapting to harsh outdoors. It uses RS485 + Modbus-RTU. DFRobot offers LoRaWAN/Arduino tutorials, cloud remote monitoring. Ideal for meteorological observation, agricultural greenhouses, etc.

Overview of Ultrasonic 7-in-1 RS485 Weather Sensor for Arduino

Downloadable Resources

  • Docs
  • Tech Specs

    • Specification

    Parameter Details
    Power supply voltage DC10~30V
    Working current <10mA
    Output mode RS485
    Measurement elements ultrasonic wind speed and direction, temperature, humidity, atmospheric pressure, light, noise, PM2.5, PM10
    Measurement range - Wind speed: 0~40m/s, start wind speed 0.5m/s
    - Wind direction: 0~359°
    - Humidity: 0~99%RH
    - Temperature: -40°C~80°C
    - Atmospheric pressure: 0~120kPa
    - Light: 0~200000Lux
    - Noise: 30~120dB
    - PM2.5: 0~1000ug/m³
    - PM10: 0~1000ug/m³
    Measurement accuracy - Wind speed: ±0.5+2%FS (60%RH, 25℃)
    - Wind direction: ±3° (60%RH, 25℃)
    - Humidity: ±3%RH (60%RH, 25℃)
    - Temperature: ±0.5℃ (25℃)
    - Atmospheric pressure: ±0.15kPa (101kPa, 25°C)
    - Light: ±7% (25℃)
    - Noise: ±0.5dB (at reference pitch, 94dB@1kHz)
    - PM2.5: particle counting efficiency: 50%@0.3μm, 98%@≥0.5μm, accuracy ±3%FS (@100μg/m3, 25℃, 50%RH)
    Response time - Wind speed: 1s
    - Wind direction: 1s
    - Humidity: ≤1s
    - Temperature: ≤1s
    - Atmospheric pressure: ≤2s
    - Light: ≤2s
    - Noise: ≤1s
    - PM2.5: ≤90s
    - PM10: ≤90s
    Long-term stability - Humidity: ≤1%
    - Temperature: ≤0.1℃
    - Atmospheric pressure: -0.1kPa
    - Light: ≤5%
    - Noise: ≤3dB
    - PM2.5: ≤1%
    - PM10: ≤1%
    Protection level IP54
    Housing material ABS polymer plastic
    Sensor cable length 14cm
    Adapter cable length 150cm

    Pinout

    Num Label Description
    Brown line VCC Power input positive pole, DC10-30V power supply
    Black line GND Power ground wire
    Yellow line 485-A RS485 data line A
    Blue line 485-B RS485 data line B

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