Chomwe chimasiyanitsa chojambulira utsichi ndi ena ndikutha kugwira ntchito ngati chida chodziyimira chokha. Mosiyana ndi zida zina zowunikira utsi zomwe zingafunike kulumikizana ndi gwero lamagetsi kapena alamu yapakati yamoto, mankhwalawa ndi okhazikika ndipo amatha kugwira ntchito pawokha. Izi zimapangitsa kukhala abwino kwa malo omwe mawaya ndi kukhazikitsa sizingakhale zophweka kapena zotheka.
Chitsimikizo cha EN chazaka 12 chimatsimikizira kuti chowunikira utsichi ndi chapamwamba kwambiri ndipo chimakwaniritsa miyezo yokhazikika yachitetezo yokhazikitsidwa ndi European Union. Kusinthasintha kwa mankhwalawa ndi moyo wautali kumapangitsa kuti ndalamazo zikhale zoyenera kwa mwini nyumba kapena woyang'anira ofesi yemwe akusowa zida zodalirika zotetezera moto.
Pomaliza, 12 wazaka EN ndudu wamba kunyamula standalone photoelectric utsi utsi sensa ndi chinthu chochititsa chidwi chimene chimapereka njira zatsopano ndi zothandiza kuopsa kwa moto. Ukadaulo wake wamafotoelectric, chivundikiro cha pulasitiki, mawonekedwe a maginito, ndi kuthekera kwake koyima kumapangitsa kuti ikhale yoyenera malo osiyanasiyana. Ndipo ndi satifiketi yake ya EN komanso moyo wazaka 12, ndi chinthu chomwe chimakutsimikizirani zamtundu wapamwamba kwambiri komanso kudalirika. Ikani malonda lero kuti muwonetsetse kuti muli ndi chitetezo chabwino kwambiri ku ngozi zamoto.