220v Stc-1000 controller in my almost done incubator

[Sharky559]

Hello freinds, well im stuck on a incubator build im doing for my kid. I bought this heat controller from ebay for around 25 buck. now i can seem to wire it. ive looked on every website on how to wire a 220v Stc-1000 controller and nothing. also i was thinking insted of the stc1000 controller that i was going to try a water heater thermostat, but will it work in the mini refrigerator. yes im making a incubator out a old mini refrigerator. need help with this