Hardware/Weather Stations/OWS4000
OWS4000

Meteorological Observation Station

A professional six-parameter automatic weather station integrating temperature, humidity, wind speed, wind direction, air pressure and rainfall with optional real-time video terminal — ready for integration into national meteorological observation networks.

Six-parameter AWSSolarWiFi / GPRS / LoRa
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OWS4000

The OWMS4000 is the flagship of the OWS general-weather range. The OWS4000 is a professional six-parameter automatic weather station that simultaneously measures temperature, humidity, wind speed, wind direction, air pressure and rainfall. With its open communication protocol it can be integrated into the observation network of national meteorological departments, and an optional real-time video terminal extends it for traffic, security and emergency-support deployments.

Various communication interfaces — WiFi, GPRS, 4G and RS485 — provide a remote wireless link between the field equipment and a central monitoring station.

Specification

Technical parameters

Temperature
Measuring range
−30°C ~ 70°C; −40°C ~ 60°C; −50°C ~ 50°C
Measuring accuracy
±0.1°C (23°C ±2°C); −40°C ~ 60°C full scale ±0.2°C
Resolution
0.01°C / 0.02 °F
Humidity
Measuring range
0% ~ 100% RH
Measuring accuracy
±2.5%RH (10%~85%); other ranges ±5.0%RH (measurement environment 23°C ±2°C)
Resolution
0.01%RH
Air pressure
Measuring range
500 ~ 1100 hPa
Measuring accuracy
±0.10hPa (−10~50°C); ±0.20hPa (−40~50°C)
Resolution
0.01 hPa
Stability
≤ 0.2 hPa/year
Wind speed
Measuring range
0.5 ~ 65 m/s
Starting wind speed
< 0.5 m/s
Characteristic transfer function
U = 0.1×R + 0.32 (U = wind speed [m/s], R = output pulse frequency [Hz])
Maximum allowable error
±0.5 m/s
Wind direction
Measuring range
0° ~ 360° (wind speed 0.5~65 m/s)
Starting wind speed
< 0.5 m/s
Maximum allowable error
Better than ±2° (RS485); better than ±3° (7-bit Gray code); better than ±2° (0–5 V analog)
Resolution
±0.5° (RS485); ±3° (7-digit Gray code); ±1° (0–5 V analog)
Rainfall
Water bearing diameter
200 cm² (φ159.60 ± 0.6 mm)
Resolution
0.1 mm
Rain intensity measurement range
0 ~ 4 mm/min
Maximum allowable error
±0.4 mm (≤10 mm); ±4% (>10 mm)
Pulse width
≥ 30 ms
System & interfaces
Sensor digital interface
RS485 / SDI12 / TTL UART
Programmable sensor power supply
3.3 ~ 12 V — max 1 A output
Wired communication
RS232, RS485, USB Type-C virtual serial
Wireless communication
BLE, 4G / LoRa
External storage
SD card, USB-A external
Photovoltaic panel power
45 W × 2
Battery
Lithium, 30000 mAh × 3, 12 V
Operating environment
−40°C ~ 85°C, 5%~95% RH (non-condensing)
Operating hours
>15 days continuous rain (with periodic camera use)
Data interval
60 s default (2 s – 24 h configurable)
Certification
CE, FCC, VCCI, CTICK
Mounting
Pole-mounted modular mast
Dimensions
1280 × 651 × 2450 mm
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