Thanks for your reply. I guess that I am assuming that professional readings from the Internet are correct but of course they are not taking readings from my garden I need to learn to trust the readings that I have and trust the shield.
Hi, I bought a Davis 7714 radiation shield but I notice that the temperatures at night is too high. If I have the sensor outside the shield, it is very accurate when looking at other local readings but inside the shield it is around 2-3C higher. Is the shield that is meant to protect the sensor from sun and radiation also not allowing the cool air in, resulting in innacurate night time temps?