Give Your Window The 2nd Degree. Now you can have a picture window view of the weather, inside and outside. The 2nd degree is the indoor and outdoor thermometer system that applies to the inside and outside of the window with a high-performance adhesive. It gives the advantage of knowing two temperatures at the same time. The 2nd Degres provides a way to double-check heating and A/C systems. Ideal for the home, office, nurseries, and and it's education.