I read recently that, allegedly, Nu-Temp told a customer that their probes are not accurate above 170. I don't own one so I can't really say.
I do use other electronic thermometers and have used them to calibrate ovens up to about 250 - I was double checking with analog oven thermometers and they agreed w/i about 5 degrees. Maybe I just got lucky.
Southern Brethren BBQ Competition Team
"It's all about getting paid!" - Myron Mixon
"I love being hated in my hometown!" - David Hair
KingFisher Gator Rotisserie cooker, WSM, Stainless 5 burner with IR gas grill, Turkey Fryer, Weber JD Commemorative grill, slightly used Bandera chamber for future use as a cold smoker, Masterbuilt 40" insulated ELECTRIC smoker