Instruct: Classify a review as either positive or negative.
Query: Not accurate at all

Basically it works, however, it's not very useful, b/c it's not accurate at all! I use it to detect the wall with moisture in my basement, got nothing (means dry, <10%), but the inspector detected it 20-30% (don't know which moisture meter he used). And also I put two legs into water directly, only got 25%-28%, which is not true, it should be >>28%, I would not recommend it for any serious use.