Abstract: The invention relates to a freeze-dryer product sensor (1). The freeze-dryer product sensor (1) comprises a transducer (13) for sensing a product parameter and an RFID unit (14). In a storage unit (28) of the RFID unit (14) at least one characteristic parameter (29) specific to the freeze-dryer product sensor (1) is stored. According to the invention the freeze-dryer product sensor (1) comprises only one single antenna unit (3), which leads to a reduced effort in constructing the freeze-dryer product sensor (1). The inventive freeze-dryer product sensor may be employed in a drying vessel. The invention also relates to a method for operating such a freeze-dryer product sensor.

Abstract: The invention relates to a freeze-dryer product sensor (1). The freeze-dryer product sensor (1) comprises a transducer (13) for sensing a product parameter and an RFID unit (14). In a storage unit (28) of the RFID unit (14) at least one characteristic parameter (29) specific to the freeze-dryer product sensor (1) is stored. According to the invention the freeze-dryer product sensor (1) comprises only one single antenna unit (3), which leads to a reduced effort in constructing the freeze-dryer product sensor (1). The inventive freeze-dryer product sensor may be employed in a drying vessel. The invention also relates to a method for operating such a freeze-dryer product sensor.

Abstract: The invention relates to a freeze dryer (1) which comprises an inspection window (15) e.g. in the region of a door (14). According to the invention the inspection window (15) comprises a reduced transmissibility for electromagnetic radiation. This might be provided by coating a base body (16) of the door (14) with a coating or layer (17) having a reduced transmissibility for radiation. The coating or layer might be arranged on the outer side or the inner side of the door (14). It is also possible that a base material of the inspection window (15), e.g. transparent plastic glass, is mixed with an addition having a reduced transmissibility for radiation.

Abstract: Locking devices for locking two components that move relative to one another such as a housing and a cover are disclosed. The locking devices have two catches disposed on one component and opposite to one another and symmetrically with respect to a stop disposed on the second component and arranged in a plane of symmetry between the opposing catches. The catches have hook ends facing the plane of symmetry and the two catches are connected to a common shaft at the ends of the catches facing away from the hook ends. The common shaft is disposed in the plane of symmetry and is movable within the plane of symmetry toward and away from the stop. The shaft is arranged on a spindle disposed in the plane of symmetry or parallel to the plane of symmetry and engaged with a motor-driven gear to effect movement of the shaft. The catches have longitudinally-extending guide elements whose longitudinal axis does not run parallel to the plane of symmetry.