Intercoms and Access Control Systems are the front lines in your security setup.   Remote gate controls and intercom systems fulfill a dual role: in addition to keeping unauthorized people out of, they have to let authorized persons through.  Many access control systems can also track who comes and goes and when.  

Petitbon Alarm Co. can recommend, install, and service a variety of outdoor intercom systems and access (entry/exit) controls for gates, doors, and driveway access.  We are the leader in Maryland of remote access control systems and can provide the knowledge, service, and support you expect from experts in home security.