KM138 frost protection

Kits Mini Kits Range
1

Hi,

I want to use the MK138 kit to keep the water for my sheep from freezing.
I need it to switch on at -1 to0 C. In the specifications it says the working range is between 5 and 30C.
How can I change this range.

Another question: if the thermostat switches on at -1 C, at what temperature does it switch off again?

Thanks

2

The board indicates the resistors that need to be changed for a different range.
Sorry, no values, please experiment. Hysteresis is about 1°C.