Review on Discover Hidden Thermal Changes with BLACK+DECKER TLD100 Thermal Detector by Ellington Gardner

Failed to load media. I wanted this for so long and was then disappointed. Maybe it didn't fit my needs because it seems efficient for others. As expected, when I used it on windows where I could feel cold air coming in, it was a few degrees lower. So he didn't tell me much. And the number jumped too much to be precise. The cone in which the rays diverge, or something else, is probably of great importance; The target device should help you keep this consistent. The last straw before coming back was that I felt gusts of cold air in my basement coming out from behind a slab of wood that wasn't jacking up and this thing behaved exactly like every other time showing it was a degree or two colder was . And I'm not sure how it got its reference value. I read the instructions but as soon as you turn it on it gets a reference value. I think the lesson is to point it in the right place when you turn it on.