Profile: Gurley Precision Instruments offers measuring instrumentation for a variety of industries & applications. We are an ISO 9001 certified company. We offer optical encoders for the precise measurement of position or speed, digital readout systems for retrofitting machine tools. We offer optical encoders for rotary and linear motion, in conventional incremental & absolute configurations. We also deliver chrome on glass process necessary to manufacture optical encoder discs. We also deliver optical encoders, optographic products and related devices.