Scientific Instruments, Inc. was founded in 1967 by aeronautical engineer Jack Hoey and physicist Gilbert Halverson, developing first-of-a-kind cryogenic thermometry for NASA Programs. In 1975, SI invented and patented the first LTD system: an intelligent system comprising of multi-sensors embedded into a single probe capable of measuring Level, Temperature and Density inside LNG Storage Tanks.
With a robust range of products and services that exemplify our expertise in cryogenic measurement, SI remains committed to the very best customer service, product support, and excellence in cryogenic measurement technology through continued innovation and advancements in technology.
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