I have to agree with Sourdough Girl. Cheaper is not always better, especially if you have to buy something twice. I have been shopping around for one for a while and have seen other thermometers that are over twice the price but they come from well know instrument makers. Accuracy is not everything but if the readings fluctuate then you will have problems.I just can not justify buying one right now. So I will be shopping around for a while. When I decide on one I will post what I bought. I would like to find a "consumers reports" type rating of them but I don't think there is such a thing for inferred thermometers.
The problem with Harbor Freight -- and lots of other places that sell cheap Chinese made tools -- is that there's no quality control. If you get a good product, it works fine. If you get a crappy one, it doesn't. There's often no way to tell, without buying it. A few years ago, I bought three angle grinders from HF. They were on sale, for some silly low price, and I wanted to be able to switch from a grinding wheel to a cutting one to a brush, and having three grinders saves a huge amount of time. One of them lasted a few hours. Another lasted some longer, but still rather short, period. The third is still going.