Helium Leak Detector Shimadzu MSE-2400/3400/4400 series Helium Leak Detectors are good for general purpose application ranging from equipment maintenance, clean room environment use to mass production use. Our Helium Leak Detector Models and Options MSE-2401MSE-2400MSE-2402 MSE-2403MSE-3400MSE-4400MLI-2401 (Option) Helium Leak Detector Product Request Form Please use the button on the left to get more information on Shimadzu Helium Leak Detectors. Corporate Helium Leak Detector Home Page Please use the button on the left to learn more about Shimadzu Helium Leak Detectors from our Corporate web site in Japan.