Product review (5 stars): Been using this for a couple months now and it does a great job. Unfortunately the Fahrenheit reading on the controller ...
Purchased to maintain temperature on a chest freezer re-purposed as a "beer cellar".

Been using this for a couple months now and it does a great job.

Unfortunately the Fahrenheit reading on the controller doesn't match up to the actual temperature.  Mine is set at 50 degrees on the dial but it maintains about a 54 degree temperature in the freezer.

I verified the same temperature with two separate thermometers so the dial is a bit off. Not a big problem but be sure to use a separate device to read the temperature and don't rely on the dial on the device.