Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waste of Money

This thermometer quit after about three months. It always 350 whether it is in the oven or sitting on the kitchen counter. I wrote to Pyrex about it, and they said that they did not make oven thermometers. I looked at the back of the thermometer and it is made by a knife company. Pyrex must only make the glass for the window. So now I am out my purchase price.