SerialSniffer - Version 1.10 SerialSniffer is a tool to get more information about data, which is transmitted via aserial link. You can connect SerialSniffer to a single device, which transmits serial data and SerialSniffer will print out the data, which is received, in the ASCII an HEX-Display. The even more powerfull opportunity to use SerialSniffer is to use a PC with two serial ports and put the PC with SerialSniffer between the two devices. SerialSniffer also allows you to exchange data by Search/Replace.