The AerobTec Altis v4+ is a barometric altimeter designed especially to record altitude of flying R/C aircraft with additional competition functionality, integrated OLED display and additional telemetry functionality. These functions are based on rules of F5J FAI and Altitude limiting competitions such as ALES, FxJ or LMR. It has very small dimensions and a low weight. The supplied application Altis Flight Manager cannot only read the information from the device and save it to the computer in various formats but it can display it in an advanced graph and process the flight information in various ways.
A number of supportive downloads are available for this device, including Flight Manager software, user's manual, FAI certificates and more. They can be found here, then click on the downloads tab if necessary.