Unfortunately I ordered 2 of these on ebay without inspecting the images. I wasn't aware of knock-offs that look almost identical. In some cases (like mine) they are listed as being a STC-1000.
The difference is the knock-off can only switch on/off one system (heat or cool). That is.. you can't leave your fermenter unattended and have the TC switch on the heating system (eg. heat pad) when the temp gets too low, or, switch on the cool system (in eg. fridge/freezer) when your precious beer gets too warm. It can only do one of those things unattended (from what I've read. I have no intention of using it - on principle I'm throwing my toys and getting a refund - although i suppose I could use it for a heater in the baby room).
Here is the link to the knock-off I purchased..
http://www.ebay.com/itm/360869572612
Here is what appears to be a genuine STC-1000. (I'll confirm once it shows up)
http://www.ebay.com/itm/360880648658
The difference is the knock-off can only switch on/off one system (heat or cool). That is.. you can't leave your fermenter unattended and have the TC switch on the heating system (eg. heat pad) when the temp gets too low, or, switch on the cool system (in eg. fridge/freezer) when your precious beer gets too warm. It can only do one of those things unattended (from what I've read. I have no intention of using it - on principle I'm throwing my toys and getting a refund - although i suppose I could use it for a heater in the baby room).
Here is the link to the knock-off I purchased..
http://www.ebay.com/itm/360869572612
Here is what appears to be a genuine STC-1000. (I'll confirm once it shows up)
http://www.ebay.com/itm/360880648658