AIO 2 Sonic Weather Sensor

The AIO 2 Sonic Weather Sensor is a complete high performance weather sensor using Met One Instruments’ proven 2D sonic technology. This technology provides reference grade accuracy without moving parts and a built-in compass used for automatic alignment of the sensor. The temperature and humidity elements are integrated into an IP65 sealed module with a quick disconnect for ease of calibration in the field. The pressure element is precisely calibrated and temperature compensated for outstanding performance.

The AIO 2 is designed for surface meteorological applications where accuracy and reliability matter.

Accessory Options:

  • 10600 USB and power interface
  • WeatherView software for real time weather display and
    data recording on a PC
  • Universal mounting hardware
  • WMO compliant external tipping bucket rain gauge
    connects simply and allows for correct installation and
    siting per industry guidelines.
  • Solar radiation sensors are connected easily and
    integrate seamlessly into the AIO 2 data record.


  • Wind Speed and Direction
  • Temperature
  • Humidity
  • Barometric Pressure
  • Rain and Solar Radiation Options
  • Rugged all metal housing
  • SDI12, RS232, RS485 Outputs
  • Met One 7500 Protocol
  • Compact 10cm Diameter
  • Compass for Automatic Direction Alignment


Wind Speed
Range: Operating Range:
0 – 75 m/sec (0 – 168 mph)
Calibrated Range:
0 – 60 m/sec (0 – 134 mph)
Accuracy: ±0.5 m/sec or 5% of reading (1)
Resolution: 0.1 m/sec
Wind Direction
Range: 0° – 360°
Accuracy: ± 5° (including Compass)
Resolution: 1.0°
Range: -40°C to +60°C (-40°F to +140°F)
Accuracy: ±0.2°C (2)
Resolution: 0.1°C
Relative Humidity
Range: 0 to 100%
Accuracy: ±3% (3)
Resolution: 1.0%
Range: 600 to 1100 hPa
Accuracy: ±0.5 hPa (3)
Resolution: 0.1 hPa
Alignment Compass
Accuracy: ±2°
Measurement Rate Output: 1 Hz
Signal Output: RS-232C, RS-485, SDI-12
8-36 VDC Supply, 40mA typical @ 12VDC, option dependent
Temperature: -40°C to +60°C (-40 to +140 °F)
Humidity: 0 to 100%
1. Whichever is greater
2. 0 to 60C. +/-0.5C from -40C to 0C
3. At 25°C

AIO 2 Sonic Weather Sensor

Specifications are subject to change at any time