Katin kariya na RFID yana amfani da allon kewayawa na sigina tare da fasahar kariya don kare siginar RFID.Mun sanya katin kariya mai girma a cikin walat ko tsakanin 3cm na matsayi inda muke so mu kare siginar wani katin don cimma tasirin kare siginar, komai na'urar da masu laifi ke amfani da su, ba za su iya sace katin ku ba. bayanai don tabbatar da amintaccen ɗaukar hoto da kuma hana yaɗuwar bayanai.Za'a iya keɓance katin kariya mai ƙarfi tare da fitilun LED da biyu ba tare da fitilun LED ba, kamar tare da LEDs: lokacin da masu laifi suka kawo kayan siginar sata na musamman kusa da ku, LED katin rigakafin sata zai haskaka don yin aiki azaman tunatarwa.