Abstract: In a first aspect there is disclosed an adapter (100) for use in mounting and/or dismounting a gaseous substance detector (102) from an overhead surface. The adapter (100) comprises a detector abutment (104) for operative placement adjacent an outer surface (107) of the detector (100). The detector abutment (104) defines an opening (106). The adapter (100) further includes a coupling (108) operatively associated with the detector abutment (104). The coupling (108) is operatively adapted for releasable attachment to an elongate implement (110) to provide fluid communication between the opening (106) in the detector abutment (104) and the elongate implement (110). In use a low air pressure force in the elongate implement (110) is applied to the detector (102) via the opening (106) to secure the detector (102) to the adapter (100).

Abstract: A method of mounting and dismounting a smoke alarm from a supporting element mounted to an overhead surface; said method including the steps of, inserting an elongate implement into an opening provided in a body of the smoke alarm, and applying a force via the elongate implement so as to detach the body of the smoke alarm from the supporting element, and wherein the elongate implement is applied by a user standing on a floor surface below the overhead surface.

Abstract: A method of mounting and dismounting a smoke alarm from a supporting element mounted to an overhead surface; said method including the steps of, inserting an elongate implement into an opening provided in a body of the smoke alarm, and applying a force via the elongate implement so as to detach the body of the smoke alarm from the supporting element, and wherein the elongate implement is applied by a user standing on a floor surface below the overhead surface.