Instruct: Classify a review as either positive or negative.
Query: this model is very loose and the third day I used it was not properly working any more.

This model was very bad the first day work properly but the third day it kept saying error. I bough another blood pressure monitor from target it was more expensive about $15 more but it has work perfectly. The product from amazon are a 50/50 chance. not a very good idea to buy this type of products from this seller.