Such floor panel systems are known in the art and commonly used in passenger aircrafts. The known floor panel systems comprise a temperature sensor device which is located inside the floor panel element. The connector device comprises a connector case which is fixedly connected to the floor panel element, and which is connected to the temperature sensor device via internal sensor wiring as well as to the panel heater device via internal heater wiring. The connector device further comprises a power and data cable at its one end fixedly connected to the connector case and at its other end removably connected to the Ice Protection Control Unit. However, such floor panel systems have a rather complicated construction which does not allow that the floor panel element and the connector device can be separated from one another and used independently. When one of the floor panel element and the connector device has to be replaced, e.g. due to a defect or maintenance, the entire floor panel system has to be replaced.

Therefore, an object of the present disclosure is to provide a floor panel system including a floor panel element which has a possibly simple construction and which can be used independently from the connector device.