Product review (5 stars): Works as Advertised - Excellent Customer  Service by Johnson Controls
The Johnson Controls A19AAT-2C Freezer Temperature Controller works as advertised. I am pleased by the unit's "plug & play" simplicity and ease of use overall. I had a minor problem and called the retailer for help but they could not offer much help. They did give me the customer serivce number for Johnson Controls and I was astonished by how helpful they were.

I purchased this unit to convert a chest type freezer into a refridgerator and it works very well. I do heartily recommend this as a solution to anyone who wants to do the same.