5B modules allow you to employ IOtech PC-based data acquisition systems in applications with a diverse range of signal conditioning requirements. These applications include LVDT, potentiometer, isolated current loop inputs, +10 mV to +40V inputs, linearized RTD, thermocouple, frequency-to-voltage inputs, and all popular strain gage configurations. The following is a complete listing of the 5B modules available for IOtech products. The following is a complete listing of the 5B modules available for IOtech products.