Thermal Reader for DIY Petri Dish Incubator - August 10th

Petri Dish incubators are quite expensive. Seeing that this item would be crucial to my project, I am building an incubator at a minimal cost. Today I created the temperature sensing unit that would ade me in keeping the temperatures constant, a must in conducting a good experiment. I got the temperature senser from a detection unit for PCs. The board used is an Arduino Uno.