AV1 display a number of functions related to the
vertical conduct of the plane: the altimeter section, with clearly
visible wide digital indications, the variometer section, with both
digital and graphical indications and many other pressure related
AV1 is completely user-configurable (units of measure, variometer scale, etc...), can automatically set the QNH of the airport reading the data from a database which can store up to 800 airports list and can record and show the graphical altimetric profile of the flight.