Instruct: Classify Amazon reviews into positive or negative sentiment
Query: difficult to get an accurate/clear reading

I had a previous non-brand name digital tire gauge and it worked great but eventually died. I bought this one thinking it would be better. The first time I used it I couldn't get a good connection at all and it kept giving me multiple readings. It also does not seem to keep the number on the display after the reading. It would disappear before i could read it fully.