Using 13.56 MHz contactless smart card technology, the RKL55 iCLASS LCD/Keypad reader and RWKL550 Reader/Writer provides users with enhanced interaction at the door. Combining contactless card presentation with a personal identification number (PIN), these readers provide a second layer of authentication for higher security. The RKL55 and RWKL550 include an LCD screen and function keys for real-time user feedback, further expanding system versatility at the door.