In general, the video is recorded for 24 hours, and the storage time of the video depends on the storage time of the equipment in your monitoring room, but it will generally exceed 7 days, and the regular video is generally 1 month (of course, many of them are not that long). If you need to find it, the sooner the better. People on duty don't watch videos if they have nothing to do, so what do you want? Hehe, ie