For standalone access control systems, all electronics are installed in a keypad or reader - there are no additional components or peripherals, including extra wiring, routers, sensors and alarms. Standalone access control is typically found on doors with low-level security or on smaller buildings with no additional exits.
Standalone units can be built with a touchlock system, which means that the user must type in a PIN code (a certain unique combination of numbers) to be granted access. Standalone access controllers can also include proximity readers and magstripe cards or other tokens. Proximity cards and key fobs use contactless technology while magstripes, for example, must be swiped through the reader.
A specific type of standalone access control units is a control unit placed in the inside of the building and a reader placed at the entrance. This solution is generally more secure.