Here is another rugged robot that can be thrown to investigate dangerous situations. The Endeavor Robotics 110 FirstLook is an expandable robot that can survive 16 feet drops onto concrete. It has 4 day and night cameras with zoom and illumination. You also get 2 way audio.
The robot can be enhanced with cameras, sensors, manipulators, and disruptors. It has a max speed of 3.4 mph. It can climb obstacles up to 7″. More information is available here.