Cam Pan + Outdoor Cam

I have a Cam Pan set up inside. Do I have to buy a complete outdoor unit with base if I want the Outdoor Cam or can it work off the indoor cam.

The base station is required for the outdoor camera to work. You can purchase the starter bundle that includes one camera and one base. The base will need to be wired to your router or switch for setup, but can be connected wirelessly with the newest firmware update.