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

Four-zone wireless receiver with relay outputs for expanding any security installation. Programs and supervises up to four high-performance transmitters with independent output configuration—follower, latching, momentary, or toggle modes. Features Form C relays rated 1A at 28VDC and 0.5A at 30VAC, case tamper protection, jam detection, and internal antennas. LED status indicator displays all four transmitter states. Wireless programming built-in. Power: 11–14 VDC at 400 mA. Operates on 902–928 MHz frequency-hopping spread spectrum. Ideal for hardwire panel integration or standalone wireless applications.