How many Zones can this System Support

The Honeywell Vista 10P by default comes with 6 hardwire zones.

When considering hardwired zone expanders and wireless sensor additions this control panel can handle no more than 22 total zones. In addition to the 22 total wired and wireless zones, the Vista 10p has also allotted an additional 8 independent keyfob zones that allow two four-button keyfobs to be programmed without using any of the 22 zones.