Meet ARMadillo: another autonomous robot with ROS control interface that can assist your customers and perform a whole variety of tasks. It has a vertical joint range of 400m and comes with a whole host of sensors, including a GPS, ultrasonic range sensors, and laser scanner.
The robot measures 43.3” x 19.7” x 19.7”. The robot can be customized and programmed using ROS. More info is available here.