Existing Alarm System / Vera

We have Guradian Alarm, which has a nice panel (http://www.guardianalarm.com/home-security-solutions/smart-home-security-solution/)

They tried to sell us their home automation stuff, but having already had Vera, there was no reason to even think about moving to their stuff, but they talked about a zwave module we could buy to install on the panel. Wondering what it would take to figure out if that would be compatible with Vera… apart from buying it to figure out.