This refers to an entire class of products made for public areas. These are often required by fire inspectors in locations where groups of people are meant to gather. These are only installed on out-swinging doors, and must open freely when anyone presses against the door. They can include exit alarms. Some people might call them “crash bars.” There are many issued to consider when selecting and installing panic devices. These include whether the door is used frequently or virtually never; whether the door is insulated as a fire and heat barrier (a fire door); and whether access from outside is needed. The height of the installation and type of device required is also regulated. A professional locksmith should be familiar with local requirements and can select and install the right product to protect your property and ensure the safety of all guests.