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DFRobot SEN0658 Ultrasonic 9-in-1 RS485 Weather Sensor

DFRobot SEN0658 Ultrasonic 9-in-1 RS485 Weather Sensor is a highly integrated, all‑in‑one environmental monitoring solution designed to capture nine essential meteorological parameters with precision and reliability. It simultaneously measures ultrasonic wind speed and direction, air temperature, relative humidity, atmospheric pressure, light intensity, noise levels, PM2.5, and PM10 particulate concentrations, eliminating the need for multiple individual sensors. Using advanced ultrasonic technology with no moving parts, the DFRobot SEN0658 ensures long‑term accuracy, reduced maintenance, and stable performance even under strong winds.

The sensor is built with a UV‑resistant, waterproof ABS housing rated IP54, well‑suited for harsh outdoor environments such as agricultural fields, urban monitoring stations, industrial sites, and smart city applications. Supporting RS485 communication via the Modbus‑RTU protocol, SEN0658 enables long‑distance, stable data transmission and easy integration with PLCs, data loggers, Internet of Things (IoT) networks such as LoRaWAN, and Arduino systems. With a wide 10VDC to 30VDC power input range, this sensor offers flexible installation and rapid deployment for comprehensive weather monitoring.

Features

  • 9-in-1 environmental monitoring - can simultaneously measure nine meteorological parameters, including wind speed, wind direction, temperature, humidity, air pressure, light, noise, PM2.5, and PM10
  • Ultrasonic wind speed and direction measurement - no moving parts, ensuring high accuracy and durability, low maintenance cost
  • RS485 interface - supports stable and long-distance data transmission, and realizes integration with industrial systems
  • Wide 10VDC to 30VDC voltage input range - ensures installation flexibility
  • Durable housing design - designed for outdoor environments and adaptable to severe weather conditions

Applications

  • Meteorological observation and research
  • Smart agriculture and greenhouse management
  • Industrial automation and control systems
  • Maritime and ship safety monitoring
  • Urban environmental and air quality stations
  • Smart building and infrastructure management

Specifications

  • 10VDC to 30VDC power supply range
  • <10mA operating current
  • RS485 output interface (Modbus-RTU protocol)
  • Measured parameters
    • Ultrasonic wind speed and direction
    • Temperature
    • Humidity
    • Atmospheric pressure
    • Light intensity
    • Noise
    • PM2.5
    • PM10
  • Measurement ranges
    • 0m/s to 40m/s wind speed, 0.5m/s startup speed
    • 0° to 359° wind direction range
    • 0% to 99% relative humidity (RH) range
    • -40°C to +80°C temperature range
    • 0kPa to 120kPa atmospheric pressure range
    • 0Lux to 200KLux light intensity range
    • 30dB to 120dB noise range
    • 0µg/m3 to 1000µg/m3 PM2.5 and PM10 range
  • Measurement accuracy
    • ±(0.5+2%FS) wind speed at 60% RH, +25°C
    • ±3° wind direction at 60% RH, +25°C
    • ±3% RH at 60% RH, +25°C
    • ±0.5°C temperature at +25°C
    • ±0.15kPa atmospheric pressure at 101kPa, +25°C
    • ±7% light intensity at +25°C
    • ±0.5dB noise (reference: 94dB at 1kHz)
    • PM2.5
      • 50% at 0.3µm and 98% at ≥0.5µm particle counting efficiency
      • ±3%FS accuracy at 100µg/m3, +25°C, 50%RH
  • Response times
    • ≤1s wind speed, wind direction, humidity, temperature, and noise
      ≤2s atmospheric pressure, light intensity
      ≤90s for PM2.5 and PM10
  • Long-term stability
    • ≤1%/year humidity
    • ≤0.1°C/year temperature
    • -0.1kPa/year atmospheric pressure
    • ≤5%/year light intensity
    • ≤3dB/year noise
    • ≤1%/year PM2.5 and PM10
  • IP54 protection
  • ABS polymer plastic housing material (UV-resistant, waterproof)
  • 140mm sensor cable length
  • 1500mm adapter cable length

Kit Contents

  • 1x RS485 9-in-1 weather station sensor
  • 1x adapter cable

Resources

Connection Diagram

Mechanical Drawing - DFRobot SEN0658 Ultrasonic 9-in-1 RS485 Weather Sensor

Dimensions: mm

DFRobot SEN0658 Ultrasonic 9-in-1 RS485 Weather Sensor

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Published: 2026-01-23 | Updated: 2026-01-30