Exhaust Gas Temps (EGT) are extremely important on Turbines. Without constant monitoring, you can destroy a $4000 engine in no time at all.

So from what I am reading here, you need a temp gauge to tell you the reason for you engine overheating is lack of airflow? I hope those who are reading this thread are not mislead by any of this. These temp guages should have warning labels that read, "for entertainment purposes only." In certain areas of R/C yes and maybe, for glow engines, I see no use for it at all and it could also give you a false sense of security.

If an engine runs like crap and on your list of diagnostics is to whip out a temp gauge, I hope nobody's watching. There is another thread on this here right now and as far as picking the right Temp Gauge, it really doesn't matter since they all tell you the same thing-nothing.