Pump unit for use with a Laser HUNTER. Possibility to clean the suction system by backwashing using an integrated compressor. Additional components are required for a functional system for vehicle-based pipeline inspection and must be ordered separately: - Laser HUNTER (item 251220). - Intake unit & probes - Accessories, e.g. hoses - Test system - Notebook, notebook holder - GIS software (Esders PI NOTE) - GPS Receiver