Physical security, electronic security, low-voltage systems, service operations, field service management, commercial security systems, access control, video surveillance, VMS, intrusion detection, intercom, service contracts, recurring monthly revenue, dispatch, scheduling, technician supervision, subcontractor management, customer retention, service profitability, service ticket management, warranty administration, commercial integrator environment. Pro-Tec Design is a purpose-driven Twin Cities security technology integrator, providing consulting, design and installation of Video Surveillance, Card Access Control, Intercom, and Intrusion systems.