The Picolario 2 has 2 pressure sensors. If you connect a TEK (total energy compensation) nozzle at the variometer port, then the alitmeter is slightly wrong. To correct this minimal error, the second pressure transducer is used only for the altitude.
Additionally there is a 40 Hz logger for altitude and voltage, which allows you to optimize the "Hochstart" altitude. You can see these logging data with our logview software.