CDVI R4EV2 RADIUM 4-Channel Remote with DESFire Ev2 Tag

Secure, reliable remote access for professional installations — the CDVI R4EV2 RADIUM 4-Channel Remote with DESFire Ev2 tag delivers robust protection and operational flexibility for commercial security. Designed as a key fob transmitter, this device pairs AES128 encrypted DESFire EV2 credentialing with a 4-channel transmitter operating at 433.92 MHz to prevent cloning, reduce false alarms and simplify administrator workflows. With a maximum operating distance of up to 820 ft and a compact, ergonomic form factor powered by a single CR2032 battery, the R4EV2 is built for long service life in access control, alarm systems and perimeter monitoring. Installers and security managers benefit from quick provisioning, multi-door control from a single handheld unit, and compatibility across CDVI RADIUM receivers for consistent system performance. Ideal for commercial buildings, gated communities, and industrial sites where secure, scalable remote control and surveillance integration matter. Enhance your access management and monitoring setup — contact sales to add the CDVI R4EV2 to your next deployment or order today.

• Enterprise-grade AES128/DESFire EV2 authentication to prevent cloning and unauthorized access
• Four programmable channels to control multiple doors or functions from one compact key fob
• Long-range 433.92 MHz transmission with up to 820 ft operating distance for reliable remote operation
• Rugged, ergonomic handheld design with long-life CR2032 battery for minimal maintenance and field durability
• Seamless integration with CDVI RADIUM systems for streamlined access control, alarm and monitoring deployments