PLX Inc. is a designer and manufacturer of unique optical instruments and systems known for their accuracy and stability even in severe environmental conditions. PLX instruments are used in diverse applications including spectroscopy, boresighting, beam alignment and delivery, ultrafast phenomena research, laser delay lines, military fire control, environmental monitoring, satellite ranging, and laser resonators. The company has in-house manufacturing and environmental testing facilities, performance testing capabilities, and state-of-the-art optical analyses equipment. PLX is located in Deer Park, New York.