Subsequently, so we went down to ask employees to open the CCTV show, but I didn't see anyone, we ask him to check out several cycles, it is not seen, and do not believe that someone who opens the door. Because the key cards are only available with our brother. CCTV camera is motion, and we were right in front of the room fit CCTV cameras, but that opened the doors to the room. And dad popped the head out until 15 minutes later, we walked out of the room to find out. Lost and saved the subdirectory of another when we walked back into the room, about 20-30 minutes later after the incident. กล้องวงจรปิดราคาถูก