<ul><li>[PARAMETER SETTING] The module can set 5 parameters through the dial switch, namely, device address, RS485 switch, switch, baud rate and channel.</li><li>[MATCHING DEVICES] Can be used with RT5BF01 module or other for N4RFA04 devices to use the remote IO function.</li><li>[WORKING RANGE] The frequency range is 426-508.5MHz, the distance is 800-1000 meter (unobstructed open space).</li><li>[WIDE APPLICATION] Widely used in PLC IO expansion board, smart home, security monitoring, identification system, network camera, LED light driver, etc.</li><li>[ CONTROL] The relay module can read or control the relay status via RS485 bus or , and can also read the input status.</li></ul><br><br>

4 Channel 4DI 4DO RS485 Transceiver Relay Module Transmitter with Antenna (12V)