You can add a Dashboard tile to navigate to another dashboard, but not from the device (virtual contact sensor) tile. See screenshot below for where you can find the dashboard tiles in the Add Item list when editing the dashboard.
I haven’t try this personally yet, but the tips from @josh below should display the aggregated value in the media tile via shield.io and myjjson.com, and set the media tile’s hyper link to the other dashboard to navigate when touched.
How To: View WebCoRE Variables in SharpTools Dashboards