The Gustav RFID beacon, in combination with the Elvis alarm transponder, is used to prevent the potentially hazardous situation of a resident suffering with dementia leaving an assisted living environment. Care Tech's Elvis alarm transponder will trigger an alarm when the user passes through a door or restricted area (where Gustav RFID would be located). Time parameters can be set e.g. between 01.00-05.00 hrs. Please note this device is compatible with Care Tech systems only.