Vigil Cuatro AAD

Vigil Cuatro is a safety device from the Belgian company AAD.
Service life of the device is 20 years without regulation.

Moisture protection, after getting wet it does not require filter replacement. 
Modes: 
PRO (activated at an altitude of 300 meters, triggers at an altitude of 46 to 335 meters at a speed of 35 m/s)
STUDENT (activated at an altitude of 300 meters, triggers at an altitude of 46 to 396 meters at a speed of 20 m/s)
TANDEM (activated at an altitude of 300 meters, triggers at an altitude of 46 to 701 meters at 35 m/s)
EXTREME (activated at an altitude of 300 meters, triggers at an altitude of 91 to 335 meters at a speed of 43 m/s)