Renishaw Inc. in Hoffman Estates, Ill., is offering steel-ring RESM rotary/angle encoders that combine rugged reliable design with high accuracy at high speeds for military applications. The devices combine stainless-steel mounting ring/scale and dirt-filtering optics with intelligent signal processing and In-Trac auto-phase bidirectional optical reference mark. These devices are for precise navigational, targeting, directional, and positioning control on land, sea, air, and space. The RESM optical encoders deliver speeds faster than 3,600 revolutions per minute. For more information contact Renishaw online at www.renishaw.com.