Knowledge base

CCTV Specs – How to Read a CCTV Spec Sheet

How to Read a CCTV Spec Sheet

(Below, we’ve highlighted the key elements to look for)

CCTV Spec Sheet

 

Descriptions

 

Image Sensor

Image Sensor – This is the chip that the camera is based around and it is made by Sony.  1/3” is the most common type but there are other sizes.  Many companies will list this as a feature in of the camera but remember Sony is only the maker of the chip not the camera.

 

2 Columns means 2 Models

Two Columns means Two Models – Pal format is not used in the US, here we use NTSC.  Anytime a spec sheet is divided into columns like this it is because 2 or more models of camera are being described

 

Spec Sheet Resolution

Resolution – For Analog cameras the resolution of the picture is measured by TV Lines.  The more TVL the better the picture.  For this camera the resolution changes when switched from B&W to color.  Here’s a post on the differences between Analog and IP camera resolutions.

 

Minimum Illumination

Illumination – Min Illumination is a measure of light needed to produce a picture.  The lower the LUX the less light needed (i.e. the better the picture will be in low light).

 

Spec Sheet - Lens

Lens – This is the Lens that comes with the camera.  The lower the mm the wider the angle of view.  The higher the number the further the camera will be able to see but the field of view will be cut down.  This camera has a vari-focal lens of 2.8-12 meaning the lens can be adjusted.  If it was a fixed lens the sheet would only list one number.

 

Spec Sheet - Power

Power – Always be sure to match your power supply with the power requirements for your specific camera.  This camera happens to be dual voltage but many are 12VDC or 24VAC only.

 

Infrared LED

Infrared LED – If the camera has IR LED’s this will describe how far the IR LED light will go.  What you can see at that distance is still determined by the lens of the camera.

– See more at: http://www.2mcctv.com/blog/2011_08_02-how-to-read-a-cctv-spec-sheet/#sthash.NjPrio02.dpuf

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