Product review (1 stars): Hygrometer Is Inaccurate!
I calibrated it with another digital hygrometer I own. The reading was off on average between 10% and 15%! The thermometer works fine, but I need both readings to be accurate! It's also not a good sign when the instructions inside the box whines about how hard it is to measure humidity accurately! Warning your customers about how inaccurate your product is means you should go back to the drawing board and make a better product!