Analog Input >> Temperature >> Thermocouple >> CJC Channel

NI-DAQmx C Properties

Analog Input >> Temperature >> Thermocouple >> CJC Channel

Data Type: char*
Description: Indicates the channel that acquires the temperature of the cold junction if CJC Source is DAQmx_Val_Chan. If the channel is a temperature channel, NI-DAQmx acquires the temperature in the correct units. Other channel types, such as a resistance channel with a custom sensor, must use a custom scale to scale values to degrees Celsius.
Restrictions: Not Settable

You can get this property using:
  DAQmxGetAIThrmcplCJCChan