Comus International was founded in June 1978 by Robert P. Romano to manufacture glass mercury tilt-switches. Romano was successful and soon the metal mercury switch and the patented non-mercury switch were developed. The company has evolved into a leading manufacturer of tilt and tip-over switches, motion and vibration sensors and float switches. Based in Clifton, N.J., Comus International has become a world leader in the design, development and manufacture of a wide variety of sensors and sensor-related products. Applications are found in such diverse areas as medical equipment, automobiles, steam irons, alarm systems and even the Arch of St. Louis.