The technology that enables connectivity of the device, e.g. wired or wireless.

This product includes a camera.

The main colour of the product.

Design of the surveillance (security) camera.

The place where the camera connects to other devices e.g. USB port.

Where the product can be placed e.g. indoor/outdoor, horizontal/vertical.

Capability to rotate device.

The quantity of cameras that product can support.

What the casing of the product is made of.

A sensor is a convertor than measures a physical quality (light, temperature etc.) and displays this electronically on a device.

Optical sensors are electronic detectors that convert light, or a change in light, into an electronic signal. They are used in many industrial and consumer applications e.g. lamps that turn on automatically in response to darkness. Optical sensors come in many sizes.

Also known as light sensitivity, this is the smallest amount of light needed for the camera to produce an image of useable quality.

Determines the length of time the shutter lets light pass through the lens to the CCD. Shutter speed and aperture together determine exposure.

The minimum size of the hole through which light enters a camera.

Also referred to as noninterlaced scanning, this is a way of displaying, storing, or transmitting moving images in which all the lines of each frame are drawn in sequence. This is in contrast to interlaced video used in traditional analog television systems where only the odd lines, then the even lines of each frame (each image called a video field) are drawn alternately.Progressive scan is used for DVDs and HDTV (high defintion television).

The IP code classifies and rates the degree of protection provided against the intrusion (including body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures. It is published by the International Electrotechnical Commission (IEC). The digits (characteristic numerals) indicate conformity with the conditions summarized in the tables below. Where there is no protection rating with regard to one of the criteria, the digit is replaced with the letter X. an electrical socket rated IP22 is protected against insertion of fingers and will not be damaged or become unsafe during a specified test in which it is exposed to vertically or nearly vertically dripping water. Another example is the Sony Xperia Z Ultra, one of the first cellular phones to be IP-rated; it is rated at IP58 and marketed as "dust resistant" and can be "immersed in 1.5 meter of freshwater for up to 30 minutes".