Arjun Singh on Twitter: "Great answers everyone. It is indeed the Avionics Ventilation Skin Temperature Sensor. It is the sensor that determines the the configuration of the avionics ventilation system ( Open,closed,partially
Air ventilation pattern in a single-aisle cabin, here an Airbus A320. | Download Scientific Diagram
Ventilation System - Airbus A320 Family - YouTube
A320F technical description: AIR CONDITIONING / PRESSURIZATION / VENTILATION
Airbus A320 CBT #040 Ventilation - System Presentation - YouTube
A320 Aircraft Systems Poster - Avsoft International