sˈɪns stˈeɪʃənˌɛɹi mæɡnˈɛɾɪk stˈʌd dɪtˈɛktɚz ɹᵻlˈaɪ ɔnðə jˈuːzɚ tə fˈiːl ðɪ ɐtɹˈækʃən ðeɪ kæn biː ˌʌnɹᵻlˈaɪəbəl, ɪspˈɛʃəli wɛn ðə mˈɛɾəl fˈæsənɚz ɑːɹ loʊkˈeɪɾᵻd mˈoːɹ dˈiːpli ɪnðə wˈɔːlɪŋ, wˌɪtʃ dˈiːkɹiːsᵻz ðɪ ˌoʊvɚɹˈɔːl ɐtɹˈækʃən.
Since stationary magnetic stud detectors rely on the user to feel the attraction they can be unreliable, especially when the metal fasteners are located more deeply in the walling, which decreases the overall attraction.