I am looking for this blue wall connector that connects a relative pressure sensor inside a housing with external tubes. Right now I am trying to find this component but I am completely unable to find it anywhere. Does anyone know where I can find it?
Search for a 3mm bulkhead fitting.
Don't know if you will find the exact fitting, but if you are just wanting to run a 3mm hose through a panel any 3mm bulkhead should work