Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A piece of junk

This item was being purchased to replace a Maverick remote thermometer that I had been using for many years and which had finally failed. Even though this item looks very similar to my old thermometer it isn't anywhere near the same quality. I actually ended up with two of these because the first one I received didn't work properly so Amazon sent a second one. Neither of the two was worth keeping. The problem common to both was that the remote readout receiver only worked "when it wanted to". Sometimes it showed the same temperature as the transmitter, sometimes it showed the temperature as it was a few minutes before. If you are monitoring a roast you need to take out of the BBQ at a particular temp, it was pretty useless. What was also quite amusing was that the dual probes on the second unit I was sent displayed temperatures which were 20 degrees apart. I guess that means you can guess whether you have rare or well done beef!