Very good controlling temperature in ferm chamber more than 2 years of constant use with no issues will buy another one for kezzer.

Considering it's hard to find well put together prebuilt STC1000 controllers at the moment this is a pretty good temperature controller. I would give 3.5 stars if I could. I had to calibrate the temperature controller as it was reading about 2 degrees off. I have used for both a keezer and fermentation chamber. Looks better than an Inkbird in my opinion so I like using it for the keezer in my family room.

Keeps my fermentation chamber at a steady temp.

Works fine. I'm currently using it to shut off a glycol chiller pump once the water being chilled hits 40 degrees. Then I'll use it to keep the fermentation temperature at 62 degrees.