Other active security devices are duress alarms and panic buttons. These devices silently signal other employees in the building or law enforcement when help is needed with a threatening or hostile visitor.

Clear Creek Ranger District Visitor Center.

A duress alarm on a key chain.

These alarms or buttons are installed by or under the front desk or can be worn as mobile devices, such as neck pendants or key chains. It is a good idea to locate them in more than one place.