Yenziwe kwaye yenziwe ngokungqongqo ngokuhambelana nemigangatho yelizwe, yenziwe ngumzimba, inkqubo yokufudumeza, inkqubo yokujikeleza komoya, inkqubo yokugcinwa kobushushu, inkqubo yokupholisa kunye nenkqubo yokukhusela ukhuseleko .Isango lixhotyiswe ngoomatshini kunye isixhobo sokunxibelelanisa umbane, siya alarm phantsi kobushushu obugqithisileyo okanye uxinzelelo olugqithisileyo, kwaye siya kuphola phantsi kobushushu obugqithisileyo kunye noxinzelelo loncedo phantsi koxinzelelo olugqithisileyo.