Product review (4 stars): Seems well built with metal body and thick cables. ...
Seems well built with metal body and thick cables.  Only problem is that I need to keep it at the lowest setting of 20 degrees to keep my food from freezing in a kenmor 3.5 cu ft freezer.  It still works very well to convert freezer to fridge, but if I wanted it any colder I am out of luck.