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 open).
#A320 twitter.com/chainsawrocks/status/1560255500205568000
⬇️ The conditions that trigger the various configurations of the Avionics Ventilation system.
Arjun Singh
@chainsawrocks
Airline Pilot A320 | B737 | Flight Sim Enthusiast. (Views and comments are personal)