Select option(s) below for Borgelt B500 Variometer with GCD2 and click "Continue".

PDA Power Converter:	None PDA_PS-A - Simple PDA Power Converter (+$45) PDA_PS-B with Serial Data Combiner (+165)
Size:	57 mm (2.25 in) 80 mm (3.125 in)
Units:	Knots m/s