We are one of the first in EMI technologies! Our roots trace back as early as the 1930s. We work hard to bring you the latest and greatest in EMI technologies and distribution. Electron Tubes Inc. manufactures low-level light detection systems and devices. Our photomultipliers are apart of a major international industry that we are a supplier of. We work to make sure that you are our objective and that the focus is on your needs. Call us today for more information about our EMI technologies!