Is it possible to install a network reader with an embedded controller CR-02BD or an entrance panel outside?

Yes, CR-02BD and most entrance panels have a wide operating temperature range (from -40 up to +65 C) and IP65 proof degree of dust and moisture. For more detailed specifications of the desired panels, you can check our website.

The IP65 is a high enough standard and means that the devices can be exposed to indirect water jets, and even if the microphone or speaker gets wet, they can still function after they dry.