DFRobot SEN0657 Ultrasonic 7-in-1 RS485 Weather Sensor
DFRobot SEN0657 Ultrasonic 7-in-1 RS485 Weather Sensor is a highly integrated, all‑in‑one environmental monitoring device designed to capture seven key meteorological parameters from a single compact unit. The parameters include ultrasonic wind speed and direction, temperature, humidity, atmospheric pressure, light intensity, and rainfall. The DFRobot SEN0657 uses advanced ultrasonic technology with no moving parts, ensuring long‑term stability, accuracy, and low maintenance, while a high‑precision optical tipping‑bucket rain gauge provides reliable rainfall measurements with a 0.1mm resolution and ±4% accuracy.
Built for demanding outdoor environments, the sensor features a UV‑resistant, IP54‑rated ABS housing that withstands harsh weather conditions, making it suitable for meteorological observation, smart agriculture, industrial automation, marine applications, and urban environmental monitoring. Supporting RS485 communication via the standard Modbus‑RTU protocol, the DFRobot SEN0657 enables stable long‑distance data transmission and seamless integration into industrial systems, LoRaWAN networks, and Arduino‑based platforms, with flexible 10VDC to 30VDC power input for versatile installation.
Features
- 7-in-1 environmental monitoring - measures seven meteorological parameters, including wind speed, wind direction, temperature, humidity, air pressure, light, and rainfall at the same time
- Ultrasonic wind speed and direction measurement - no moving parts, ensures 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 to ensure installation flexibility
- Durable housing design - designed for outdoor environments and adaptable to severe weather conditions
Applications
- Meteorological observation and research
- Agricultural greenhouse management and precision farming
- Smart industry and industrial automation
- Ship safety monitoring and marine applications
- Urban environmental monitoring stations
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
- Rainfall
- 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
- ≤4mm/min rainfall intensity
- 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
- ±4% rainfall
- Response times
- 1s wind speed
- 1s wind direction
- ≤25s humidity
- ≤8s temperature
- ≤2s atmospheric pressure
- ≤2s light intensity
- Long-term stability
- ≤1%/year humidity
- ≤0.1°C/year temperature
- -0.1kPa/year atmospheric pressure
- ≤5%/year light intensity
- IP54 protection
- ABS polymer plastic housing material
- 140mm sensor cable length
- 1500mm adapter cable length
Kit Contents
- 1x RS485 7-in-1 weather station sensor
- 1x adapter cable
Connection Diagram
Dimensions: mm
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