Pye-Barker Fire & Safety, formerly Knight Security Systems, provides commercial security and life safety solutions throughout Harrisburg, Hershey, Carlisle, Mechanicsburg, Camp Hill, York, Lancaster, and Central Pennsylvania. We design, install, monitor, inspect, and maintain access control, video surveillance, burglar alarms, intrusion detection, 24/7 alarm monitoring, and integrated security systems for businesses, healthcare facilities, schools, government buildings, industrial facilities, and multi-site organizations. Our local team delivers responsive service backed by the nationwide resources of Pye-Barker Fire & Safety.