Product review (1 stars): Inaccurate and inconsistent.
Inaccurate and inconsistent. The indoor and outdoor temperatures are always off by anything from 5 -11 degrees from what I've tested so far. This holds true no matter if it's on Celsius or Fahrenheit. I tried many different battery types and several battery manufacturers. It was never in direct sunlight or exposed directly to rain. Eventually I just threw it away. It was never consistent.