Product review (1 stars): It was a waste of money
I have had this product for over two years. I became suspicious that it was not accurate when I bought a second instrument for a different room. When I set them side by side to test their relative accuracy, the two did not agree. I bought a third from yet another source and compared the three. The second and third were in close agreement, the Vicks was way off -- at least ten percent too high -- always. It was a waste of money.