ELK ELK-AEXRFA9 2-Way Wireless Transceiver with Alarm Engine Bus Adapter

Designed to expand Alarm Engine control panels with reliable two-way wireless sensor support, the ELK Products ELK-AEXRFA9 kit combines the ELK-AERF9 two-way wireless transceiver and the ELK-AEXRFA bus adapter to deliver seamless integration for security, surveillance and monitoring applications. The adapter plugs into the E27 control board data bus so installers can add wireless detectors, door contacts and other devices without complex rewiring. With a compact board and housing footprint (board ~3.5" x 3.94", housing ~4.25" x 6.36") and a low operating draw of 12 VDC at 112mA, this control panel transceiver minimizes system load while maintaining dependable two-way communication. The kit is US-made and purpose-built for retrofits, new installations, and multi-site deployments where reliability and ease-of-service matter. Upgrade or expand your alarm and surveillance systems quickly—order the ELK-AEXRFA9 to streamline wireless sensor integration and improve overall monitoring capability.

• Integrates two-way wireless sensors directly to the Alarm Engine bus for seamless alarm, security and monitoring expansion
• Simplifies installations and retrofits by eliminating additional wiring and supporting E27 control board bus connectivity
• Compact, low-power design (12 VDC, 112mA) minimizes load on control panels for reliable 24/7 operation
• US-made kit pairing (ELK-AERF9 transceiver + ELK-AEXRFA bus adapter) ensures compatibility and robust performance
• Ideal for commercial and residential security upgrades, enabling scalable surveillance and alarm system integration