newbie question wireless security system

[KP <>]

Hello,

I am looking for a wireless security system, where I can check on the
status of the system from 3 different locations (floors).  Also, I
want to be notified ,for example, that the front door was opened even
if the alarm is not set.  For example, if I am in the basement, I want
to hear that the front door opened with a message similar to "front
door open".  Again I need to be able to hear this from 3 different
locations, not just from one very loud location.  Thanks

KP