With the modular input design, you can select the input modules appropriate for your measurement application. Select from voltage and temperature (thermocouple or Pt input* 1 ) and humidity.* 1  * 2  Also, Digital Pulse Module  8948  provides 15 input channels for totalization/ rotation counts and Hi/Lo logic measurements. In addition to inter-channel input isolation, the PC connection interface is completely isolated from the measurement terminals, minimizing shock hazards and interference even when measuring thermocouple and voltage inputs at the same time.