MVario2 EX is a system that measures atmospheric pressure and using the obtained data it calculates the altitude above sea level, airspeed, and the rate of climb as well as the rate of descent.
The MULi6s Module is a sensor designed to monitor the Li-XX battery voltage, which measures the voltage of each battery cell via the balance connector. It allows you to monitor the voltage of up to 6 Li-XX cells per module.
MULi 6S EX is a sensor for checking voltage of Li-XX batteries that checks the voltage by service connector of every single cell. It allows you to check the voltage up to 6 Li-XX cells.