The company joins at least two Japanese robotics teams on the ground in the quake- and tsunami-ravaged country , one of which operates an 8-meter-long , snakelike robot with a camera . U.S. company iRobot has donated two ground - based robots to help with recovery efforts . The PackBot is an agile , field - tested unit used for bomb disposal . The Sentinel is a larger , heavy - load ##er , mobile robot .
U.S. company iRobot has donated two ground - based robots to help with recovery efforts . The PackBot is an agile , field - tested unit used for bomb disposal . The Sentinel is a larger , heavy - load ##er , mobile robot .