Difference between the LR8431 and LR8432

QIs there any difference between the LR8431 and LR8432 other than heat flow measurement?

A

There are more differences between the LR8431 and LR8432, in addition to the ability to measure heat flow on the LR8432.  Basically, the LR8432 includes all of the functions of the LR8431, plus the following advanced specifications:
* High sensitivity range 
     LR8432:  from 10mV
     LR8431:  from 100mV
* Higher voltage resolution
     LR8432:  500nV max.
     LR8431:  5uV max.
* Double gauges
     LR8432 only
* Specific time span calculation for numeric calculation
     LR8432 only