The concept of security camera has evolved quite a lot in time, adapting to the development of technology and telecommunications. Thus, at this moment, security cameras that can be accessed directly from the landline Internet (via network cables, to be more precise) are nothing new, and the manufacturers are targeting new data transmission mediums, as for example 3G services. And one of the first devices of this type is developed by D-Link, namely the Securicam DCS-2120 Wireless Internet Camera.

The Securicam DCS-2120 device has been designed especially for smaller spaces (office, home, etc.) and provides the ability to remotely view live video and listen to sound from a 3G mobile phone or PDA in real time from anywhere within a mobile's 3G service area. Moreover, the DCS-2120 surveillance camera has a very sensitive optic system, ideal for nighttime use, as well as a 4x zoom.

The Securicam DCS-2120 has a web-based control interface, comes with a built-in 802.11.g wireless network interface and includes a 10/100Base-TX Ethernet port that is provided for convenient connection to an Ethernet network, or broadband Internet via a gateway router. The DCS-2120 supports resolutions up to 640x480 pixels at up to 30fps, and has a price of around 330 dollars, a relatively low price for such a versatile surveillance system.