Shop Altronix Relay Modules at GeoArm Security. Discover Altronix relay modules designed for access control, alarm systems, fire alarm interfaces, and security automation applications, providing reliable switching, signal isolation, and system integration for residential, commercial, and industrial installations. Built for dependable performance, these professional-grade relay modules seamlessly integrate with leading security and access control systems while supporting GeoArm 24/7 professional UL-listed central station monitoring or DIY self-monitoring with no long-term contract.