kˈætɹɪn ɪz dɪzˈaɪnd tə pɹədˈuːs ɐ vˈɛɹi ˈækjʊɹət spˈɛktɹəm ʌvðə nˈʌmbɚz ʌv ᵻlˈɛktɹɑːnz ɪmˈɪɾᵻd wɪð ˈɛnɚdʒiz vˈɛɹi klˈoʊs tə ðɪs tˈoʊɾəl ˈɛnɚdʒi ˈoʊnli ɐ fjˈuː ˈiː vˈiː ɐwˈeɪ, wˌɪtʃ kˌɔːɹɪspˈɑːnd tə vˈɛɹi lˈoʊ ˈɛnɚdʒi nuːtɹˈiːnoʊz.
KATRIN is designed to produce a very accurate spectrum of the numbers of electrons emitted with energies very close to this total energy (only a few eV away), which correspond to very low energy neutrinos.