Product review (5 stars): My unit seems pretty accurate. The temperature displayed is the same that ...
My unit seems pretty accurate.  The temperature displayed is the same that my thermostat reads in that room so I would say it's correct.  The humidity reading says that my bedroom regularly sits around 40% give or take the HVAC and showers.  I'd say that it is also on point as I feel dry most of the time.  This was my first step to a better night's sleep... proving that it wasn't just my imagination.  Next step is getting a humidifier that I can set at a nice, soothing humidity level.  Once I get it up and running, I'll be sure to compare this unit and the humidifier readings but I'm not too worried.  Others have complained about their accuracy but I'm pretty sure that I got a good one.