Many selection on Stand Alone DVR, Mini Portable Digital Video Recorders, Mobile Surveillance Recorder, PC & Linux base dvr, and board digital video recorders. For daily surveillance recording please select Stand Alone DVR. Business customers who wants easier firmware upgrade, then select the PC / Linux base system. Need On-the-go solution or undercover surveillance, go with the portable DVR (digital video recorders), carry anywhere and completely portable. Most of our Surveillance dvr has built-in Remote Viewing to remotely view from anywhere in the world with internet setup. We carry 1 channel dvr, 4 channel dvr, 8 channel dvr, 16 channel dvr, and 32 channel dvr.