Which action is necessary to activate a Double Action Station?

To activate a Double Action Station, the necessary action involves breaking glass and opening a door. Double Action Stations are designed with safety in mind, requiring two distinct actions to minimize the chances of accidental activation. This dual requirement ensures that individuals need to intentionally activate the station, which is crucial in emergency situations to prevent false alarms.

The mechanism typically involves breaking a protective glass pane, which is a physical deterrent against accidental activation, followed by the opening of a door or lever that further indicates an intentional attempt to initiate an alarm. This layered approach not only deters unintentional use but also ensures that individuals clearly understand the need to take significant action in an emergency.

The other options, while they involve some form of activation, do not align with the specific requirements of a Double Action Station. For example, simply pulling a handle or pressing a button may be features associated with different types of alarm activation systems but do not encapsulate the two-step process required by Double Action Stations.