Transtropospheric communicator?  Nope--thermometer for hot fat used in the process of deep this
If you point one at 
a pot of hot oil, the reading will be too high because much of... [DOC] [TLE] Candy and Oil Thermometer - Definition and Cooking Information ... [PAR] A heat monitor and gauge used to measure temperatures of 100F to 400F or ... 
when heating sugar for making candy, jam, syrup, and grease for deep frying.