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The iCLASS SE RK40 reader, produced by HID Global, an ASSA ABLOY Group brand, is a device that communicates with a personalized credential via radio frequency (RF) technology. The reader collects identity information from the credential and passes it on to a secured control unit via electrical cable. The control unit then grants or denies access to the credential holder. Also, integrated into the reader is a 12 digit keypad which can be used to enter a Personal Identity Number for an added level of security. The reader is capable of communications using a high frequency RF signal and is able to communicate with several credential formats. Also factory settings can be updated to various configurations allowing the reader flexibility in its function. Supported credential formats:  iCLASS SE (Cards/Tags/Fobs)  SE for DESFire EV1 (Cards)  SE for MIFARE Classic (Cards/Tags/Fobs) Configurable functions:  LED function  Audible signal (Beep)  Communication format