Sensor
-tem:double
+add():void+remove():void+sendMessage():void+testAlarm():void
Light
+doSomeThing():void+light():void
AlarmListener
+doSomeThing():void
Voice
+doSomeThing():void+alarm():void
InsulateDoor
+close():void+doSomeThing():void
Security
+doSomeThing():void+open():void
