Honeywell International Inc. engages in the aerospace technologies, industrial automation, building automation, and energy and sustainable solutions businesses in the United States, Europe, and internationally. The company's Aerospace Technologies segment offers auxiliary power units, propulsion engines, integrated avionics, environmental control and electric power systems, engine controls, flight safety, communications, navigation hardware, data and software applications, radar and surveillance systems, aircraft lighting, advanced systems and instruments, satellite and space components, and aircraft wheels and brakes; thermal systems; and spare parts; repair, overhaul, and maintenance services; and wireless connectivity services. Its Industrial Automation segment provides automation control and instrumentation products and services; smart energy products; sensing technologies with custom-engineered sensors and services; gas detection technologies and personal protective equipment; and system design automation equipment, as well as software and analytics for manufacturing, distribution, and fulfillment operations.