This is a electronic system that can control the flow of personnel through a designated area of even the control of personnel or vehicles in to a particular area.

These system can work in many ways:-

1) By a Personal Identification Number (PIN) in to a key pad.

2) By a personal card.

3) By a proximity tag

4) By a BIO scan of a piece of your body.

5) By any multiple of the above.

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