SK1000 supports card, card+PIN, card or PIN, photo comparison for normal card mode or dual-card mode as well as a standard Wiegand32 reader and standard Wiegand keypad. It also comes with an alarm and RS422 communication port. The SsofNET software provided has a two-dimensional plane interface, which contains powerful transaction logging and database lookup features that collect, sort, compile and store thousands of transactions from all modules daily for analysis. Stored data is maintained at a fully shared and integrated relational database system based on Microsoft SQL server. It is convenient for software secondary development.