... liquid helium sensor apply to Ultra low temp MPT221LT ultra low temperature pressure sensor, liquid oxygen pressure ... temperature scientific experiments, liquid oxygen, liquid nitrogen, liquid hydrogen, liquid heliumCooling tanks, cryogenic tanks, cryogenic propellants ... as pressure measurementAerospace, aviation, ships and other low temperature storage tanksSpecificationMediumfor 17-4PH ,15-5PH, 316L ...