22-bit USB data acquisition module with 20SE/10DE analog inputs, 16 digital I/O, four frequency/ pulse inputs, and PDQ1/ PDQ2 expansion port; includes Personal DaqView and PostView software; support for Visual Basic, C/C++, LabVIEW, and DASYLab.

Both the Personal Daq/55 and the Personal Daq/56 can be easily expanded with one of two available snap-on expansion modules, bringing the total capacity up to 60 analog or thermocouple channels,32 digital I/O lines, and 4 frequency input channels. Furthermore, USB hubs can be used to create multi-unit systems containing up to 100 Personal Daq modules attached to a single PC. Using this strategy, a multi-unit Personal Daq system can provide up to 8,192 analog and digital I/O lines.