Instruct: Classify the given review into positive or negative sentiment.
Query: It doesn't work.

I was excited to see this multimeter correctly measuring temperatures with the thermocouple. However, this is about all it did correctly. The backlight button didn't do anyting, the function button made it beep but nothing happened, and none of the data buttons actually did anything besides produce beeps. The only button that functioned correctly was the power button. The included component socket was poorly labeled. A description of the socket may have been in the manual, but the manual is poorly written (or translated). I will be returning this item as soon as possible.