Inovonics EN4204R EchoStream 4-Zone Add-On Receiver with Relays, 902-928 MHz

Designed to expand and simplify commercial security installations, the Inovonics Wireless EN4204R EchoStream 4-zone add-on receiver delivers dependable, supervised wireless zone inputs for alarm, access control and perimeter monitoring. The EN4204R programs and supervises up to four EchoStream transmitters and provides Form C relay outputs for direct connection to any hardwired panel or stand‑alone application—making integration effortless for technicians. Outputs are independently configurable in follower, latching, momentary or toggle modes to match diverse surveillance and monitoring workflows. Built-in tamper protection, jam detection and internal antennas improve system integrity, while the 902–928 MHz frequency‑hopping spread spectrum (FHSS) radio ensures resilient wireless performance. The receiver operates on 11–14 VDC (400 mA) and features clear LED status indicators plus a wireless programming routine to speed deployment. Ideal for retrofits, multi-site rollouts, and sensitive monitoring zones, the EN4204R helps reduce installation time and maintain continuous, supervised security coverage. Add this EchoStream zone expansion module to your next alarm or access control project to boost reliability and simplify system growth.

• Expand existing alarm installations by adding up to four EchoStream wireless transmitters for scalable zone monitoring
• Integrates seamlessly with hardwired panels via Form C relay outputs for reliable alarm and access control signaling
• Flexible output modes (follower, latching, momentary, toggle) allow custom behavior per zone to match your surveillance or alarm logic
• Built-in supervision, case tamper protection, and jam detection boost overall system reliability and reduce false alarms
• Frequency-hopping 902–928 MHz EchoStream radio delivers robust wireless communication in challenging RF environments
• Onboard LED status and wireless programming simplify installation and ongoing maintenance for busy security integrators