Alarm, part of a private Fire protection system which activates a Fire alarm box of a public Fire department. Refer: “Fire protection, public Fire protection.” [image file=Image00005.gif] Central station alarm : Alarm system owned, operated and maintained by a private security firm for the protection of the premises of its customers. When an alarm sounds in the central station, the private security firm notifies the appropriate public, police or Fire departments and may send its own investigator to the scene of the alarm. [image file=Image00005.gif] Local alarm : Alarm which sounds inside or immediately outside a protected property thus alerting its occupants and/or nearby persons to an emergency condition. [image file=Image00005.gif] Proprietary alarm : Alarm which is similar to a central-station alarm but in which the alarm is received at a central office on the protected property. Refer: “Alarm, Central Station Alarm.” [image file=Image00005.gif] Remote Station alarm : Alarm which is Directly wired to an off-premises office of a Fire of police department or owner of the protected property. A remote station alarm differs from an auxiliary alarm in that, when the remote station alarm alerts a public authority, it is Directly wired to the headquarters of that authority rather than relaying on the nearest alarm box. [image file=Image00005.gif] Water-flow alarm : Alarm which sounds when a Fire-suppression sprinkler system begins to discharge in order to serve as a Fire alarm, or, if there is no Fire, to signal the inappropriate discharge of the sprinkler system. A water-flow alarm may be either a local, central station or remote station alarm.Aleatory : Depending on chance. Type of contract (1) whose execution or performance depends on a contingency or an uncertain (random) event beyond the control of either party, and/or (2) under which the sums paid by the parties to each other are unequal. Most Insurance policies are Aleatory contracts because the insured may collect a large amount or nothing in return for the premiums paid.