Divane Bros. Electric Co. completed an upgrade of the security systems for Divisions V and VI at the Cook County Department of Corrections Facility. Divane installed a campus monitoring system for eleven detention buildings and new security monitoring and system wiring in two buildings. These systems included new proximity sensors that are used to sense cell door position, and a new PLC control system to control perimeter doors. Divane Bros. also installed a new CCTV system, audio system, intercom system, fire alarm system, and removed existing obsolete equipment.