Fiks

Hi, newbie here on the site. I needed a surveillance system to check on the parking behind my building that leads to an alley, so i got a DVR Relong 3900 with 4 cameras. It works really good, the only problem I have with it is at night, when the cameras are on IR, it always triggers the motion sensor (always on) so it records all the time, even thought there is no movement at all. Anyone know a way to fix that? During the day I have no problems at all with that system. I really like it!