Our cost-effective pilotsonde


Pilotsonde PS-15

  • Wind-detection by multi GNSS (GPS, GLONASS, BEIDOU)
  • Highly stable transmitter
  • Status indication via status LEDs
  • Optional XDATA interface for external sensor
  • Optional barometric pressure sensor


Our latest innovation – the pilotsonde PS-15

The pilotsonde PS-15 is based on the well-established high quality GRAW radiosonde system DFM. In fact, it is a GPS radiosonde without sensors for humidity and temperature. It can replace conventional Pilot soundings with optical radiotheodolites by a fully automatic sounding system at very low costs. The PS-15 is fully compatible with all GRAW Upper Air Sounding Systems and can be used in combination with normal PTU radiosondes. The optional XDATA interface allows using the telemetry of the PS-15 for transmitting any external sensor data down to the receiving system.

Technical data


49 g (incl. battery)


75 mm (height); 35 mm (diameter)

Power supply

1 x Lithium CR123A

Runtime integrated battery pack

> 90 min

Frequency range

400 … 405.99 MHz

Frequency stability, 90% probability

< 1 kHz

Max. range

> 250 km

Pressure measurement range

1100 - 1 hPa

Pressure resolution

< 0.01 hPa (internal)

Wind speed range

0 - 200 m/s

Wind speed uncertainty

< 0.1 m/s

Wind direction range

0 - 360°

Wind direction accuracy

< 1°

The first few metres of ascent pose the most risk for the radiosonde in the event of strong winds. Secure your ascent with one of our Unwinders. For more information click here.

Balloon Filling Units
We offer balloon filling units in different designs for filling balloons with helium or hydrogen and for varied balloon sizes. For more information click here.

Our high quality balloons are available in different sizes and ensure that your radiosonde reaches the desired height. For more information ask our sales team.