My smoker will arrive 8/5 and I don't have a thermometer. Or time to search this forum, so I apologize if this question has been asked a lot. Why is the Thermapen so highly thought of if it requires opening the smoker so heat is lost? It seems the Maverick with two probes and a sending unit is a no brainer. But since I'm a beginner and the pros just might know more than me, what is the story? And if I need both but can only afford one of them to begin with, which do you recommend? And should I consider some other brand? Thanks.