Downloading CEIWEI SerialPortMonitor 12.7.4 from our website was free. This program is an intellectual property of CEIWEI SerialPort Monitor.
From the developer:
CEIWEI CommMonitor serial port monitoring wizard is a professional tool software program for RS232, RS422 serial port protocol, Modbus RTU/ASCII protocol filtering monitoring and packet capture.
You may want to check out more software, such as Serial Port Monitor, which might be related to CEIWEI SerialPortMonitor.