Fyi, we are a manufacturer of tracking ptzs, speed domes and vehicle cameras.

Esp our tracking ptzs, they can automatically follow moving object, also they can automatically zoom in / out this object to realize best view; it has tracking when cruising function, ie, the camera can start tracking automatically when cruising among presets; while after the tracking object is out of view, the camera can go back to cruising mode again.

Beside tracking ptz, we also have speed domes and vehicle cameras at competitive prices, I wonder if you are interested.

P.S. we will attend the ISC West 2009 held in Las Vegas from Apr 1st to 3rd with booth number 33012; if you will be there too, you are warmly welcome to visit, look forward to meeting you.

Your early reply will be highly appreciated.