Optical comparators, often called comparators or profile projectors, are time-tested and cost effective for businesses. Non-contact measurement and a variety of specifications allow optical comparators to be used in many dimensional applications. MSI-Viking Gage carries brands like Starrett, Mitutoyo, and Dorsey, among others. Listed here are our most popular models. Call us for a comprehensive quote because stages, data processors, and lenses are usually sold separately.