Product review (5 stars): Its digital, easy to read, looks nice, and is sold at a great price.  What more can you ask for, really?
I bought a similar thermometer/hygrometer last summer for our equipment room in our basement.  The equipment room contains all of our home theater equipment and gets pretty hot.

The amplifiers, Blu-Ray player, Processors, Computer, etc, all produce a lot of heat and it has gotten up to 84 degrees in there.  Some equipment has even shut down.

So we need to keep tabs on the temperature until we can get a room AC unit, which is next on the never ending to-do list.

The previous thermometer was similar to this model, but it wasn't until about a month ago I realized it would cost more to replace the battery than it would to simply buy another unit.

The old one takes a very strange little battery that closely resembles a Tootsie Roll and since our local Radio Shack went out of business, I don't even know where to begin looking for a replacement.

While I was searching for a new thermometer that took regular batteries, I came across this one available at a discount in exchange for my honest review so I jumped on the opportunity since it appeared to be exactly what we needed.

I cannot say for certain it is accurate, but we have yet a third digital thermometer/hygrometer we purchased for the home theater itself and the temperature matches quite nicely between that unit and this new one.

The humidity isn't exactly the same, but within 2%.  The only thing is, I don't know which one is off.  The old one or this new one.  I suppose Id need a working third one to be able to tell.

Its close enough for us, though, and we mainly need accurate temperature readings, which this seems to offer.

This is an extremely easy to read LCD screen.  Our old one would have to be tilted a certain way to be able to read it, but this one can be read from about any angle, which is a nice surprise.

It isn't heavy, but feels like it is well made and durable.

The old one was about the same size overall, but the readings were smaller because on the main home screen, it displayed the current temperature/humidity and the 24 hour min-max on the same screen.

In order to see the min-max on this one, you have to press the min-max button.  This is strictly a personal preference, but I do believe I prefer seeing both on the screen at the same time.  I already have to walk into the room to see the readings, so taking another step closer to be able to see smaller numbers (but more information) isn't a big deal.

Again, thats a personal preference.  You may very well prefer seeing only the current temperature and humidity, so I won't mark this as a con.

The battery this model takes is easy to find.  Our local Dollar Tree had an 8 pack for $1.00 so I should have enough batteries to last a lifetime!  For reference, it takes an LR1130 round, flat, battery.  Ive heard this referred to as a watch battery before, too.

Ive not had this device long enough to know how long the batter will last.

Our old one lasted about one year.  We have another that has lasted 21 months, but it takes two AAA batteries.  Its still going strong, though.

I will update the review when this battery dies or if there are any other problems or issues.

Out of the three digital thermometers weve had in the last year or so, none of them have stated a warning that this one has.  Im a bit concerned, too, because it has to do with the accuracy.  The manufacturer states, Instrument performance may be affected if operated within a high frequency radio field such as near a mobile phone, or if subjected to an electronic shock.

This device sits on top of an equipment rack and in a room full of electronic equipment, so that could be what is throwing off the humidity sensor and Im afraid over time it may not display the correct temperature.

All I can do is monitor it and compare it with our other device every now and then and I will do just that and update this review if I find there to be any performance degradation.

For now, though, Im happy with this purchase.  Its digital, easy to read, looks nice, and is sold at a great price.  What more can you ask for, really?