Security is usually a major concern when it comes to commercial buildings that have multiple people going in and out through the course of the day. An easy solution to guaranteed security and controlled access is the installation of a system that only provides access to employees and authorized personnel. It reduces the need for complicated security surveillance systems and makes the process of keeping track of who is coming and going a lot easier.   There are various kinds of  access control systems  available. They all serve one purpose: allow access to individuals who need to be in certain areas. This can be restricted areas in a store only accessible to employees or can be a big place of business where hundreds of employees come and go every day.   Access control systems can vary depending on what suits the needs of the client. The main purpose of an access control system is to keep track of the people who go in and out of a place of business, which means ...