... drive 3. 12.1''screen control 4. 100m motorized/manual cable CCTV Pipe Inspection: Components:Front camera, Rear camera, ... the data of running speed, ditance, crawler internal, and camera internalpressure index, two axis Angle measurement, lighting source ... function, operator information, air pressure,slope, dip angle, speed and distance information4). Management function: user password input, modify; ...