Product review (3 stars): Bought a couple of these (another one like it from Meritline a while back)
Bought a couple of these (another one like it from Meritline a while back).  The clock is not accurate - after a while it will be about 15 minutes fast and to be reset.  The temperature seems accurate.  But the Hygrometer is not, all three vary between 5-10%.  Since I can live with those, I still give it 3 stars.  But buyer beware.