I have CVI cameras. I had 5 and they worked great for a few years. The night was good and day was in color. One camera went bad but when I replaced it the night vision is very dark. I though maybe the new camera was bad. So I installed at one of the other camera sites and it works great at night. I have coaxial and power running to each camera. The run is inside the house. What would make the wire run go bad. What I DO NOT UNDERSTAND is why COLOR is VERY good BUT NIGHT IS VERY DARK. I replaced the new camera with another new camera and the same thing happen. Again installed both new cameras in place of an existing camera and they worked OK. Tried a different channel on the security DVR and had the same effect(not working,meaning very dark at night). What could be causing the night vision to be so dark but the day show up in color very good. Camera model--DH-IDF-48WN(ZA)-V3 [ATTACH]80053[/ATTACH]

I am getting ready to replace my entire alarm system as lightning struck and took out the control board a few weeks ago. I currently have a Vista 20p with 6160 keypads. I am planning on replacing the 20p with the same but want to add wireless to some windows on several floors. For this I will be upgrading at least one of the keypads to a 6160RF. I am a bit concerned that some of thw wireless sensors may be out of range of the 6160RF so I was wondering if it is possible to use 2? Does anyone know the answer to this? Thanks, Andy