Can I use any type of CCTV security camera outside?
Not really. Some mini security cameras are designed for outside use with waterproof cases (e.g. bullet cameras) but if you need lenses of different focal lengths and especially if you need auto-iris lenses (which are best for outside because of varying light conditions) then mini-cams won't be satisfactory. Normally, body cameras such as our Mintron 63X11N are used outside but need to be mounted inside a special outside housing. These housings are rainproof and can also contain a heater unit for really cold climates and/or a fan for hot climates. Mini-dome CCTV security cameras, and similar, meant for inside use only, should not be used outside.

If I install a video capture board in a computer and eventually want to add more cameras than that board has connectors, can I add another board?
Yes, in some cases. Multiple video capture boards are supported with the Sentry LE Series DVRs. Should you require additional cameras, another capture board may be added to the DVR adding additional camera ports. The upgradeability of the system depends on the initial configuration – please see the Sentry LE Series DVR pages for further information.

Why are color CCTV security cameras better than Black and White (B/W), even though B/W security cameras will work at lower light levels?
Traditionally, B/W security cameras were considerably less expensive than color security cameras, much more light sensitive and often of higher resolution. Today, the price gap has narrowed considerably, resolutions are basically the same and while B/W security cameras can still be more light sensitive than color security cameras, the light levels at which our color security cameras will still produce images is as low as 0.3 Lux, which is pretty low light (Starlight color security cameras which utilize frame integration, will provide color pictures in as little as 0.003 Lux). Taking these points in mind, when you add the far more positive recognition qualities of color images, it makes color cameras, in general, a better value today than B/W security cameras.

How far from the DVR can I place security cameras?
Using RG59 Coaxial Cable, each CCTV security camera can be placed up to 600 feet from the computer and up to 1,000 feet with RG6 Coax. Even longer distances (>2,000’ )can be achieved using Baluns and CAT5 cable