Ответ:It is a stand alone. Automatically attaches to aircraft fuselage. High-impact case with internal electric vacuum pump. Designed to fit most general aviation and military aircraft static ports High-impact yellow case for unit protection, easy mobility and storage Size: 12" x 10" Weight: 8.5lbs Custom voltages available: 12vdc, 28vdc, 115vac, and 220vac Power input: 115vac 50/60 Hz. continuous operation Comes with 0.5-inch center suction cup; additional sizes available.