IUGX11-1-66-10.0-01 is a type of pressure switch manufactured by Sensata. It is a single-pole, single-throw, normally closed pressure switch specifically designed for use in air brake and air suspension applications, such as semi-trailer trucks and buses. The switch is designed to trip when pressure rises to its 10 PSI set point and reset below the 6.5 PSI set point, and can handle operating pressures up to 250 PSI. The switch is made from durable, corrosion-resistant materials, sealed for life to ensure a long, maintenance-free service life, and it has a threaded 1/4-inch pipe fitting for easy installation.