Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Grossly inaccurate

We bought this as a replacement of a safety 1st ear thermometer that broke down. It has been continuously inaccurate ever since we bought it. We have been forced to take several rectal temperatures in a panic after this so-called-thermometer told us our children's temperature was up-to 105.3'. Rectal temperature showed 102'. Other times we had successive readings that varied from 94' to 101' that were taken within minutes of each other. Again it didn't feel right, and there goes another rectal temperature, this time 104.I can feel my kids' temperature with my hand on their foreheads more accurately than this thing measures. Tomorrow I will go and get another ear thermometer and throw this thing away.