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 four ground-based robots to help with recovery efforts . The PackBot is an agile , battle-tested unit used for bomb dispersal . The Warrior is a larger , heavy-load bearing , 347-pound robot .