Instruct: Classify Amazon reviews into positive or negative sentiment
Query: P3 International P4460 EZ Electricity Usage Meter

This meter probably works fine for your small appliances. I purchased it to evaluate my heavy usage appliances such as refrigerators, air conditioners and to my dismay many of my heavy usage appliances such as dryer, A/C's have different plugs so the Monitor simply is of no value as it will not plug into the outlets.