The amount of channels a security recorder has available is the total amount of security cameras that a recorder can accommodate.
The resolution indicates the amount of pixels recorded. Wired NVR / DVRs can record up to 4K, which will give you the highest quality video.
Some security cameras have longer night vision ranges than others. Some options even include our Color Night Vision Technology.
Some systems include speciality cameras, such as PTZ, audio, or even IK10 vandal-proof cameras that are ideal for “within-reach” installations.