Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Before you buy....

Go to [...], click on personal weather stations then click on the google maps link. Looking at either the temperature or dew point readings look around on the map for stations whose readings look way off. 9 times out of 10 it will be a wmr968. This is easily the worst weather station ever made, and it is polluting weather data all over the country. For your sake and for the sake of people who may refer to your weather data, please don't buy this truly horrible product.