A robot for cleaning and inspecting conduits has a synchronizing mechanism, which extends all driving units simultaneously and with a constant normal force applied to the conduit wall. The robot may be equipped with adapters for conduits with rectangular cross section, and with extension bars for conduits with large diameters. Further, the robot may be equipped with sensors monitoring the robot status, these include a sensor of the synchronizing mechanism position, inclinometer and gyroscope. Data from these sensors may be displayed on a monitor. The movement of the robot inside the conduit and therefore the speed of individual tracks is controlled by the operator by three control elements: direction of turning, diameter of bend and speed of motion. The robot is also able to travel backwards inside the conduit automatically based on stored information about forward movement.