Radiosonde RS41-SGP

Vaisala radiosondes are known for their accuracy, reliability, and ease of use

Features • Superior PTU measurement performance with a pressure sensor • Automated ground check • Robust and easy-to-use design with informative LEDs • GNSS for reliable wind data availability as well as additional height and pressure calculation • Stable narrow-band transmission complies with ETSI standard EN 302 054 • Unwinder for consistent sensor boom positioning

See pictures for details. What you see is what you get.

These radiosonde's where tracked and recovered by myself. The sensor is intact. 

It does not come with the balloon as that popped when at maximum altitude.

Please note this should not be turned on until reprogrammed as it operates on a licensed frequency and as it has a built in GPS device it will transmit its location. Software is available on the internet to programme it for amateur radio and other purposes.