14CE66-2 is a packaged, barometric pressure switch manufactured by Honeywell. It is designed to provide a remote indication of a pressure change and help maintain differential pressure in applications such as industrial systems, environmental protection systems, and medical instruments. The switch is designed to be installed in a variety of rough and hostile environments, including industrial and commercial equipment, buildings, and ventilation systems. The switch has a nominal pressure range of 1 to 6bar, a pressure port thread size of 10mm, and a maximum operating temperature of 150°C. It features an adjustable switching differential and requires an external power supply. It is UL/cUL listed and CE marked for use in Europe.