sas
The XD-16 is not just an AFR gauge, it reads a serial data stream. You can have it displaying/logging EGT. You can have it displaying AFR but if the EGT goes above a certin value, it will display that.
I am going to get another gauge just to display EGT. Infact, in EGT mode, it can display reading from 4 channels - any one of then, the average of all, and automatically switch to the highest. Which is what i'm going to