Product review (5 stars): It works great. I would definitely recommend it when you need ...
Product arrived when it was supposed to and had battery already with it so it was a matter of Unpackaging and applying to metal surface since its magnetified. It works great. I would definitely recommend it when you need to monitor temperature, humidity etc. I have it for 3 weeks now. Only thing I would like to see  added would be a way that it can free stand by itself.