A system for controlling access to an interior of a laboratory enclosure comprises a motor in communication with an access door of the laboratory enclosure to transition the access door between an open state and a closed state, the access door exposing an opening to a work surface inside the laboratory enclosure in the open state and at least partially covering the opening in a closed state; an electronic controller that generates control signals for the motor to transition the access door between the open state and the closed state; and a software interface configured to provide a data instruction from an external computer to the electronic controller to generate the control signals and governing the movement of the access door.

Aspects of the present disclosure include a container closure indicator system for indicating that a cap is completely engaged with a container and method for using the same. The system may include a cap flag and a flag screen. The cap flag may be located on a lower surface of a cap and may extend downwards away from the lower surface. The flag screen may be located on an outer surface of a container adjacent a top end of the container and extends towards a bottom end of the container. The cap flag may be configured for insertion behind the flag screen when the cap is lowered towards the top end of the container. The flag screen may be configured to occlude visibility of the cap flag till the cap is fully engaged with the container. Appearance of the cap flag behind the flag screen indicates that the container is closed by the cap. Appearance of the cap flag behind the flag screen may be visualized by a user or automatically by a camera. The camera may relay information regarding closing of the container to an instrument in which the container has been placed.

A sealed connection device for a double-door connection system comprising a first flange and a first door closing off the first flange, the first flange comprising bayonet connection for connecting an object, the object comprising a second flange closed off by a second door, the second flange being provided with n lugs intended to engage with the bayonet connection of the first flange, the first flange comprising n detectors of the correct assembly of the lugs of the second flange in the bayonet connection, each detector being configured to detect the presence of a lug.

A transfer device for enabling an aseptic transition between a first object, in particular a first process unit, and a second object, in particular a second process unit. Furthermore, a system consisting of at least two objects, in particular process units, and to a system consisting of three or four or more objects and/or process units.