The ELTROTEC SWS is equipped with a light intensive halogen lamp on the probe tip. This enables large cavities to be effectively illuminated. It is used e.g. for inspecting insulation in cavity walls, beams and wooden constructions. This model is also frequently employed for building refurbishment, stone drill holes and for inspecting exhaust gas paths. The integrated accumulator allows the endoscope to be flexibly transported to all deployment sites. Alternatively mains operation is possible.