Founded in 1954, Tri-Tronics Company Inc. manufactures photoelectric sensors and controls. It offers an array of products, including XP10, X-Mark, ColorWise, EZ-Pro, Smarteye Pro, Mark II and many more. The company offers a wide range of sensors, such as registration, label, luminescence UV and general purpose sensors. It provides products and services for a variety of industries, including packaging, machine automation, inkjet printing, coding, offset printing, product inspection, labeling, and material handling industries. Tri-Tronics Company Inc. is one of the leading manufacturers of elevator and hoistway door protection systems in the United States.