The Protective Tube is a 1200 mm tall enclosure made of PMMA acrylic tubes. It is specifically designed to protect and seal the AOPD of the Orion2. The caps of the tube feature a Gore-Tex membrane that effectively prevents water, dirt, and condensation from entering the tube. The connection cable of the AOPD is securely protected and kept in place by an M16 cable-gland, which also prevents water and dirt from entering. For easy installation, two stainless steel rotation brackets are included and can be mounted on the product caps. This Protective Tube has IP67, IP68, and IP69K ratings for superior protection against dust and water ingress.