FISO develops and manufactures fiber optic displacement and positioning sensors designed for monitoring electrically energized components in high-power transformers, structural monitoring, and actuators. The technology is immune to EMI and RFI, and provides full functionality in temperatures above 100 degrees Celsius. The FOD linear position and displacement sensor is housed in aluminum or composite material, and offers a resolution up to 0.002 mm, 20 mm linear stroke, and accuracy +/-0.02 mm.