Add to cart XC Tracer Mini 3 Solar GPS-Vario $350.00 XC Tracer Mini III GPS is a solar variometer with GPS and BLE, simple and performant. It may weigh only 34 grams but it has more than one trick up its sleeve! LAG-FREE AUDIO FEEDBACK Conventional variometers have the major flaw of having a lag between the actual climb/sink rate and the audio feedback. XC Tracer Mini III GPS gives a lag free audio feedback due to the use of an accelerometer combined with the barometer. This allows to be way more efficient in thermals, especially in weak conditions. It is possible to customize the audio feedback sound to your taste here! GPS LOGGER XC Tracer Mini III GPS does log an IGC and and KML file in parallel. The IGC files are accepted by F.A.I. for paragliding competitions, and you can look at your track in Google Earth in simply double clicking on a KML file.