You would never be able to fit the probe in WITH the probe Ss brew tech provides, but you may be able to substitute it. I'm unfamiliar with the stc 1000 probe but I use a Johnson A419 and it fits the Ss Thermowell like a glove. I'll like never use the provided thermometer
For others....I just got my conical and the ssbrewtech temp probe. The stc and the ssbrewtech probe fit in the thermowell at the same time