Here is a rugged surveillance robot with a 6-axis arm and tracked chassis to climb stairs and over obstacles, open doors, pick up objects, and perform other tasks. It has a Pan-Tilt-Zoom camera with LED lights to allow you to see in any direction.
The HD2-S is ready for hazardous surveillance. It runs for 8 hours and has a max speed of 4 ft per second. It weighs about 75 lbs.