This program allows you to check the flow of data through a computer's COM ports. As you can see from software name this application can work as serial port monitor. It supports full duplex mode, flexible adjusting of parameters, output received data to file, automatic and manual modes, free data source, serial device simulation, plugins and sniffer mode. It is recommended for advanced users and automation specialists. It is worth noting that Advanced Port Monitor allows passively monitoring a full duplex conversation by using 2 ports in RX.