DIY Cold Sensor:Are You Wasting Money?
Are you wasting money on heating or air conditioning, trying to control the temperature of the house while drafts from outside are defeating you? Drafts come from all places. Under doors, the corners of doors or windows, even through outlets, especially when they are on an outside wall. Detecting where the drafts are might be as hard as fixing them. But there is a way, with BlindSpotz, to detect cold drafts. The sensors work easily can tell the severity of the draft too.
You can look here to see how BlindSpotz work and how to use them in your home.