We ( Shanghai Raynex Technology Inc ) as dedicated to Design and Produces of Access control system . Time & Attendant Management system and Proximity Card Reader Products in the China market . we also have a branch office in the Beijing ( China ) and have about 7 different distributor in the different city , Then we can use our products brand name ( KEYTEC ) to doing the after service & provide a effective technology support and good quality products to our customer in the market .

Our company policy - The Quality and Service that is the Way we doing the business in the market , our goal is to provide a good quality system products and enough service to our customer , then our customer can install our system without any problem and make the people with a safety & convenient life .

If you have any requirement about the ( KEYTEC ) One Card Solution System & products , please contact with us and you will find our service & products is good and can meet your requirement .

The New SF2000NET Management System can work with our SF2000 Access control system and work with TCP / IP Network Function . Support with 10 / 100 Mbs Ethernet Operation . Built – in Ethernet and TCP/IP Protocol and Support TCP Server / TCP Client / UDP Server / Client . Preserve your investment by instantly turning serial devices into internet devices That run on your existing software . The SF2000NET System also support User password protection for configuration and Support Max . 3 TCP Server Port Function . If you have any inquiry about this new products and please contact with us , thanks .