Thanks! https://pic8.co/sh/S81lM1.jpg Will do. It is a quarter after 8am where I am. I will be taking measurements of the ambient temp and oven temp every hour throughout today. I expect that it might be about 11am before I start getting a reading. I live in a subdivision community and the neighbor has a tree that will block some of the sun until around that time. Temp outside right now is about 40 degrees. The thermometer will begin to read when it gets to 150.