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Enabling better global research outcomes in soil, plant & environmental monitoring.

Agricultural-Grade LoRaWAN Weather Station

The S-NODE-SDI-ATMOS41 is a LoRaWAN node designed specifically to support the METER Group ATMOS 41 in order to provide a research-grade LoRaWAN Weather Station.

The LoRaWAN ATMOS-41 weather station outputs the following parameters:

  • Solar Radiation (W/m2)
  • Rainfall/Precipitation (mm)
  • Lightning Strikes
  • Average Lightning Strike Distance (km)
  • Average Wind Speed (m/s)
  • Wind Direction (°)
  • Gust Wind Speed (m/s)
  • Air Temperature (°C)
  • Vapour Pressure (kPa)
  • Atmospheric Pressure (kPa)
  • Relative Humidity (%)

Features:

  • 7 watt or 11 watt solar panel with pole mounting bracket
  • Internal 6.7Ah Lithium Ion battery
  • AS923/AU915 for use in Australia/Asia, with other frequency plans available upon request

The METER ATMOS 41 is a modular micro-environment weather station that has no moving parts and a slim, tubular form factor.

  • The ATMOS 41 weather station measures 12 weather variables including:
    • air temperature, relative humidity, vapour pressure, barometric pressure, wind speed and direction, solar radiation, precipitation, lightning
  • Easy installation
  • No moving parts
  • All data transmitted over a single wire
  • Digital SDI-12 communication

The problem with weather stations.

Most weather stations are cluttered, complicated and frustrating to install and maintain. Wiring and programming all the components can be a nightmare and finding room to mount everything can be a challenge.

All-in-one weather stations solve many of these problems, but the trade-off is flexibility. Adding just one more sensor often requires an extra data logger, making the system more complicated and more expensive.

All-in-one plus one.

METER’s solution is an all-in-one…plus one. The all new ATMOS 41 is the first affordable all-in-one weather station that fulfils all your weather measuring needs, but doesn’t restrain you when you want to do more.

Payload Definition:

Byte Length Purpose Description
0 16 bits Solar Solar Radiation (W/m2)
2 32 bits Precipitation Precipitation (mm x 1000)
6 16 bits Lightning Strikes Lightning Strikes
8 16 bits Strike Distance Average Strike Distance (km)
10 16 bits Wind Speed Average Wind Speed (m/s x 100)
12 16 bits Wind Direction Wind Heading from North Reference (°)
14 16 bits Gust Wind Speed Max. Wind Speed (m/s x 100)
16 16 bits Air Temperature Air Temperature (°C x 10)
18 16 bits Vapour Pressure Vapour Pressure (kPa x 100)
20 16 bits Atmospheric Pressure Atmospheric Pressure (kPa x 100)
22 16 bits Relative Humidity Relative Humidity (RH x 1000)
24 16 bits Internal Temperature Internal Temperature (°C x 10)

Node:

Regions: AU915, AS923.
Other regions available upon request.
Power: Included 7W Solar Panel, Lithium-Ion battery (18650).
Enclosure: IP65 Polycarbonate

Sensor Specifications:

Solar radiation Range: 0 to 1750 W/m2
Resolution: 1 W/m2
Accuracy: ± 5% of measurement typical
Precipitation Range: 0 to 400 mm/hr
Resolution: 0.017 mm
Accuracy: ± 5% of measurement from 0 to 50 mm/h
Air temperature Range: -40 to 50°C
Resolution: 0.1°C
Accuracy: ± 0.6°C
Humidity sensor temperature Range: -40 to 50°C
Resolution: 0.1°C
Accuracy: ± 1.0°C
Relative humidity Range: 0 to 100%
Resolution: 0.1%
Accuracy: 3% typical, varies with temperature and humidity
Vapour pressure Range: 0 to 47 kPa
Resolution: 0.01 kPa
Accuracy: ± 0.2 kPa typical below 40°C, varies with temperature and humidity
Barometric pressure Range: 50 to 110 kPa
Resolution: 0.01 kPa
Accuracy: ± 0.1 kPa
Wind speed Range: 0 to 40 m/s
Resolution: 0.01 m/s
Accuracy: the greater of 0.3 m/s or 3% of measurement
Wind gust Range: 0 to 40 m/s
Resolution: 0.01 m/s
Accuracy: the greater of 0.3 m/s or 3% of measurement
Wind direction Range: 0 to 359°
Resolution: 1°
Accuracy: ± 5°
Compass heading Range: 0 to 359°
Resolution: 1°
Accuracy: ± 5°
Sensor tilt Range: 0 to 180°
Resolution: 0.1°
Accuracy: ± 1°
Lightning strike counter Range: 0 to 65535
Resolution: 1 strike
Accuracy: varies with distance, > 25% detection at < 10 km typical
Lightning distance Range: 0 to 40 km
Resolution: 3 km
Accuracy: unspecified
Dimensions 10cm diameter x 34cm height (includes rain gauge filter)
Cable Length 3m (custom cable lengths are available for an additional cost)