Product review (4 stars): Adequate
It provides what says, temp and humidity, of course I have nothing to compare it to.  It does rise and fall with the use of showers, so I guess it is working.  Temp guage compared to another one six inches away is one degree different, but again which one isn't right????  Okay, I paid $46.00 I keep thinking you could have found one cheaper and then I paid shipping.  I haven't used the alarm mode since it never goes over 70% and usually stays above 50%.  The unit was easy to step up, batteries went in like a charm and it displays nice large number so even with your glasses off you can read it.  Good luck.