12VDC RS485 TTL RS232 Serial Port Relay UART Modbus Rtu Switch Module PLC PTZ
9,09 €
1 xDC 12V 1Ch RS485 Modbus & AT command Relay Board. Under the MODBUS command ,the maximum delay is 255 seconds. 7 Under the MODBUS command mode, it can support up to 247 devices in parallel. Modbus Poll.
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