• System related
• 

• Wind speed and direction
• 

• Cup
• 

• Air temperature / humidity
• 

• Rain gauge, snow cover
• 

• Water level
• 

• Solar radiation / sunshine
• 

• Barometric pressure, evaporation, soil moisture
• 

• Earthquake
• 

• Marine Wind Speed ​​and Direction Meter,
  Marine wipers and swivel windows
•