Obl� - Vigilus - Omnia GPS Receiver
 
If you don't have any GPS device featuring NMEA output on your aircraft, you can buy this module to provide Obl�, Vigilus and Omnia with Gps signal.
In the Obl�, it will enable the Tracking indications and will also be used for automatic correction of the magnetic declination and to perform the magnetic calibration procedure.
 
Oblo - Vigilus - Omnia GPS Receiver (Cod. 601090) Manual