Product review (2 stars): Real Problems With Accuracy
I purchased 6 of these temperature/humidity indicators.  Five of these units read within 2 to 4 degrees of each other (on both temperature and humidity readings). Not real consistency when it comes to accuracy.  I wanted to put one of these in each room to monitor the humidity and temperature, but the inconsistency in the readings makes this difficult. The really bad news is that one of the six units I purchased is off by over 16 degrees.  These units are clever and inexpensive, but, I guess the old saying still goes: "You get what you pay for!"  If you are looking for accuracy, you better spend more money and purchase something better, that is accurate.