Radiosondes
Radiosondes are carried into the atmosphere by weather balloons. While ascending they measure a combination of temperature, humidity, barometric pressure, ozone, and wind velocity and radio the data to a ground system for processing. They are used around the world to gather data for weather predicting.
What to do if you have found a radiosonde (39 KB pdf file)
What to do if you have found a radiosonde (39 KB pdf file)
 | Mark II A MicrosondeThe New Mark II A Microsonde represents a significant improvement in field performance. A new temperature measurement process and enhanced relative humidity measurements in a smaller flight package, provide superior accuracy and reliability to users. |
 | Mark II Microsonde™ |
 | GPS Mark II Microsonde™ |