Honeywell International Inc. operates as a diversified technology and manufacturing company worldwide. The company functions through four main segments: - **Aerospace:** This segment provides 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, aircraft wheels and brakes. It also offers spare parts, repair, overhaul, maintenance services, thermal systems, as well as wireless connectivity and management services. - **Honeywell Building Technologies:** This segment offers software applications for building control and optimization, sensors, switches, control systems, and instruments for energy management, access control, video surveillance, fire products, as well as the installation, maintenance and upgrades of systems. - **Performance Materials & Technologies:** This segment provides automation control, instrumentation, software, and related services; catalysts and adsorbents, equipment, consulting services; materials for manufacturing end products such as bullet-resistant armor, nylon, computer chips, and pharmaceutical packaging; also reduced and low global-warming-potential materials based on hydrofluoro-olefin technology. - **Safety and Productivity Solutions:** This segment offers personal protection equipment, apparel, gear, footwear; gas detection technology; cloud-based notification and emergency messaging; mobile devices and software; supply chain and warehouse automation equipment, software solutions; custom-engineered sensors, switches, data and asset management productivity software solutions. The company was founded in 1906 and is headquartered in Charlotte, North Carolina.