The V100A is Vetta's Altitude computer. It combines all 21 V100 functions with 7 different altitude functions including readouts for Total Altitude Gain and Maximum Altitude for any given ride. The display also shows the slope or Percent Grade up ( + ) or down ( - ) during a ride, and it can even track Intermediate Altitude and Distance on a segment of a longer ride. In addition to the Service Timer, the V100A features Current, Maximum and Minimum Temperature. The optional Cadence feature offers Current, Maximum and Average Cadence readings.