Choose from two of the biggest names in the intrusion field. Digital Security Controls DSC has always been a major player with the independent alarm dealer. GE Security has a family of products under their umbrella including NetworX (Caddx), Simon (ITI Wireless), Concord & Allegro. Many accessories including smoke & motion detectors, door contacts, sirens, heat, freeze & CO detectors, keypads and more are stock in both conventional and wireless functions.