There are many ways to have an electronic access in order to get the automated security of not only the personnel but also their possessions like cars. Basically in case of the organizations and companies where the employees are required to produce the smart cards or proximity cards in order to get themselves authorized and recognized by the card readers present at the entrance gates of the companies. In the same way there is a way to get your vehicle secured and that is by means of the smart key. With the help of a smart key you can have an access to the electronically secure system. The smart keys are basically carrying the proximity key fobs which contain the secret code for every car. The function of these keys is the same as that of the proximity cards, which is to validate and authorize a vehicle before entering into the premises of a building and getting it parked.
Development of Proximity keyfob system
This system of the proximity key fobs was developed in 1995 by the Siemens Company and the first ever vehicle company to introduce the system of Keyless Go in 1998. Later on the patent design of this security system was filed and got approved in 1998 by Daimler Benz and this was based on the system of development of proximity cards. Since then there has been a development and introduction of the low cost keys available in the market and this made the life easier for the common man as well. Nowadays even the low price plastic key fobs are also made available in the market.
How does proximity key fobs system work
Usually this system is used by the drivers with the fob key pocketed inside the smart key designed especially for the cars. The proximity key fobs allow the locking and unlocking of the cars when they are parked in or parked out of the security arena. Nowadays the alternative systems of the low price plastic key fobs are also available which also work on the same principle. The identification of these keys is done by means of the antennas fixed in the body structure of the cars. Their mode of working is almost the same as that of the low price proximity card.
Availability of the low price cards and fob keys
When the technology was introduced, it was very costly that the common man was unable to afford it. However, as the system got simplified, the procedures became easier and the availability of low price cards and keys were made possible by various companies. Security systems have been made accessible for almost all the car owners due to the availability of the low price plastic key fobs.

Analogy of working of fob keys and HID proximity cards
The working principle of the low price fob keys is almost the same as that of the low price proximity card with an exception of the operation that the former works on cars specifically. In this system the door of car gets opened automatically even when the handle or trunk release is pressed. The availability of the low price proximity card and its working is not at all complex or substandard. In fact it is facilitating for the car owners and employees as well.