When it comes to physical access control systems, there are a few different options available. The most popular option is probably a card-based system, where each employee has a card that they use to swipe in and out of the building. This works with most types of doors and doesn’t require any major installation, making it a more affordable option for small businesses. However, in the long run, biometric systems are the best solution because they are reliable and more secure which could potentially save your business large sums in damage.