An yi amfani da shi a tsarin tsinkayen mazaunin mazaunin, kamar na'urorin ƙararrawa na kujeru, farashin motar haya ta atomatik, gano jakar iska da tashi direba, alal misali, tare da wannan na'urar, ana iya fahimtar ko akwai mutum a wurin, kuma idan babu kowa. za a yi amfani da jakar iska.Ba za a buɗe ba.Lokacin da direba ya bar wurin zama, zai koma tsaka tsaki kai tsaye.Yana iya tsara siffar firikwensin da kuma ji na lamba bisa ga siffa, taurin da matsi na motar mota.
Gano ko akwai mutum a wurin zama, kuma ana aika wannan siginar zuwa na'urar ƙararrawa bel.A ka'ida, wannan siginar ganowa kuma za'a iya amfani da ita azaman maɓallin jakunkunan iska na fasinja na gaba
Sharuɗɗan da ke da alaƙa da samfur: firikwensin nauyin kujerar baby, firikwensin katifa, firikwensin nauyi na kujerar kujera, firikwensin nauyin kujerar mota.Na'urar firikwensin nauyi na keken hannu, firikwensin matsi na aminci, firikwensin nauyi na sofa.