The Protective Tube is a PMMA acrylic tube with a height of 1350 mm. It is designed to protect and seal the AOPD of the Orion1 Base. The caps of the tube are equipped with Gore-Tex membranes, which effectively prevent 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 that also prevents water and dirt entry. For easy installation, two stainless steel rotation brackets are included, which can be mounted on the product caps. The Protective Tube has IP67, IP68, and IP69K ratings for superior protection against dust and water ingress.