Khadi loteteza la RFID limagwiritsa ntchito bolodi lozungulira lozungulira lomwe lili ndi ukadaulo woteteza kuteteza ma siginecha a RFID. Timayika khadi yotchinga kwambiri mu chikwama kapena mkati mwa 3cm pomwe tikufuna kutchingira chizindikiro cha khadi linalake kuti tikwaniritse zotsatira zoteteza chizindikirocho, mosasamala kanthu za chipangizo chomwe achifwamba amagwiritsa ntchito, sangathe kuba khadi lanu. zambiri kuti zitsimikizire kusuntha kotetezeka komanso kupewa kutayikira kwa chidziwitso. Khadi lotetezera kwambiri likhoza kuperekedwa ndi magetsi a LED ndi awiri opanda magetsi a LED, monga ndi ma LED: pamene achifwamba abweretsa zida zapadera zakuba pafupi ndi inu, khadi lotsutsa-kuba la LED lidzayatsa kuti likhale chikumbutso.