Honeywell International is a diversified manufacturing company. It operates in four segments: Aerospace, Building Technologies, Performance Materials and Technologies (PMT), and Safety and Productivity Solutions (SPS). The Aerospace segment supplies aircraft products, software, and services to original equipment manufacturers. The Building Technologies segment provides building control and optimization solutions, sensors, switches, control systems, video surveillance, fire products, etc. The PMT segment offers performance chemicals and materials, process technologies, and automation solutions. The SPS sector manufactures personal protective equipment, apparel, gear, footwear, gas detection technologies, custom-engineered sensors, switches, and other products.