You may add transmitters (VA-6000T) to cover as many areas as you want.

Voice Alert System-6 allows a maximum of six user recorded messages. Each message is specific to one zone. For instance, zone one could be for a driveway alarm -“Car coming up the driveway” while zone two could be for a sensor monitoring the back yard- “Alert! Child by the pool!” Perhaps a third sensor guards a side entrance against intruders. However, when this PIR detects movement, the base unit plays “Intruder on patio” and triggers a floodlight using one of four relays included on the base unit. System-6 can monitor all three zones simultaneously and still have three additional zones available when needed. Users can alter their messages and place the wireless sensors wherever they wish.