Well with people starting to guess the parts I guess I should go ahead and list them. Spoiler warning though, this will ruin the illusion...
The main body is a patient's phone from a hospital.
The handle is PVC.
The view cover is PVC and the viewscreen is the clear prismatic plastic used in overhead lighting fixtures.
The clear dome with the spinning lights on the bottom is a mini version of those lighted globe toys.
The scanning antennas are made from CPVC and Pex pipe.
The bottom box which is the battery cover is made from a electrical outlet extender box and was highly modified.
All of the cosmetic plating is styrene.
The reason I don't give these lists outright is because now when you look at it you'll just see all the parts and not the complete prop, like I do. Or maybe not...