This tube is designed for reliable sensing of total and static air pressure up to transonic and supersonic speeds. The outlets with marking are located at the rear end of the tube. The tube consists of a streamlined brass body, the outer surface of which is nickel plated and polished. There is a heater element inside of the tube to eliminate the risk of icing during flights in bad weather conditions. This product can be fully customized. Don't hesitate to contact us with your inquiry.