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Thursday, 3 January 2019
KERISTECH XVR is the Embedded Hybrid Digital Video Recorder compatible with DTVI,AHD and other coaxial HD specification,which can be accessed to any HDTVI,CVI,AHD,analog and network signal.It can disable numbers of analog channels and convert them to IP channels,which have both functions of DVR and NVR.
Wednesday, 2 January 2019
A proximity card or prox card is a "contactless" smart card which can be read without inserting it into a reader device, as required by earlier magnetic stripe cards such as credit cards and "contact" type smart cards. The proximity cards are part of the contactless card technologies.
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