Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very Inaccurate

I purchased this product to use in a humidor. Once I received it I tested its accuracy, since it is advertised as adjustable I wanted to get it dialed in. It turned out to be 6% off. When I attempted to adjust this setting so that it was showing accurately the dial used for adjusting did nothing. This product is not adjustable by any means and is not accurate to within .3% like the packaging says. I would not recommend this to anyone.