Product review (5 stars): Affordable and works once you put batteries in, no fuss!
Since there were so many to chose from, I spent about 2 hours trying to figure out which one would just work and be simple to operate and not cost too much. This one works great for me. I put batteries in it and presto, it worked. I was replacing one that the outside temp quit working and didn't want to mess with it. This is within 2/10th of a degree as my other one, which is close enough for me. I just need to know how many layers to wear outside in the winter and not wear in the summer and having an inside temp is convenient. If you want simple and plug-n-play (ish), this is the one.