What is the name of the one that reads in Fahrenheit ? I can't find it anywhere on eBay. The one shown goes for $15-20 on eBay. For 25-30 u can get a PID.JuanMoore said:There are sellers on e-bay that have an almost identical unit that reads in fahrenheit, but it's only single stage. I have one controlling my keezer and two in the control panel of my HERMS. If you want dual stage for a ferm chamber, they're all celcius.
Correct. It is highly reccomended to max out the compressor delay feature (10 min?), set the temp differential to at least a couple degrees F, and if possible secure the temp probe to something with some thermal mass so that it doesn't change drastically every time the door is opened. At least one of these things is a must to prevent short cycling the compressor and killing it. And FWIW you can actually set the STC-1000 to have a smaller temp differential than you can on the ranco controllers (0.3C < 1F), not that you'd want to.