Have any of you used these tubes to protect your immersion pyrometers? If so how long do they hold up? http://clevelandelectriclabs.com/products/thermocouples/thermocouple-protection-tubes-2/
I suspect the 446SS version of this is essentially what MIFO uses on their meters. If I remember correctly HT1 uses (or at least used) one of the MIFCO tips and mentioned it holding up well. I really do not like the gouging rod, gets eaten away quite easily and I really have to heat mine for quite a while because it responds so slow. I would think the SS would transfer heat much quicker.