Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Software didn't work and no customer support

This product would not work on my computer most of the time. Every once in a while (about 1 of 20 tries) it would work. I called Oregon Scientific and they said they don't support the software. They gave me the name of another company but they didn't even have a phone number for them. I tried it on my work computer and it worked.I had this same problem with a data logging blood pressure monitor but have not had issues with any other USB devices on my computer. Everything else works well plug and play.If you know how to make sure you are very computer savvy or you might be wasting your money. I even bought a new USB hub and that didn't work either.