The Protective Tube is a 450mm high PMMA acrylic tube designed to protect and seal the AOPD of the Orion1 Base. It features Gore-Tex membrane caps that prevent water, dirt, and condensation from entering the tube. The AOPD's connection cable is safeguarded by an M16 cable-gland, ensuring protection against water and dirt. For easy installation, two stainless steel rotation brackets are included and mounted on the product caps. The Protective Tube has IP67, IP68, and IP69K ratings for superior waterproofing and dust resistance.