You can compare the DSC Power Series here.
DSC Alarm Systems
The DSC Power 1864 Alarm System can do up to 8 hardwired zones out of the box and is expandable to 64 maximum wired or wireless with the RFK5564 keypad.
The DSC Power 1864 model offers 8 possible area partitions and can accommodate up to 95 user entry codes.
This kit includes:
DSC Power Series 1864