Many thanks folks have installed the inkbird and it's working great keeping the fridge at 11 degrees +/- 1 degree.
With a properly located probe, and a good set up, the Inkbird will control a brew to at least +/-0.3*C.
I suggest that you insulate the probe from the air in the fridge by strapping it against the brew using a slot cut into an ordinary domestic sponge and strapped to the barrel or FV. This will mean that you are measuring the temperature of the brew and not the temperature of the air in the fridge.
In the photograph below I am actually using some kitchen towelling folded up and trapped by the handle of the FV. It did the same job but isn't as neat
or effective!
Also, to make setting up the system easier, and assuming that the temperature in Cornwall is currently above 11*C, I suggest that you remove the Heating plug and let the fridge increase in temperature by using the heat from the ambient air surrounding the fridge. It will happen a lot more slowly.
On the Fridge, you can change the temperature at which the fridge is set. As you are not trying to drop the temperature down to 4*C or less, I suggest that the setting is put fairly high. (If you still have the original Handbook from the fridge it may tell you more or less what is the equivalent temperature for each setting.)
On the Inkbird, you can change the Temperature Differential to decide when you want the Inkbird to react
and/or change the Compressor Delay to help reduce the fridges' compressor starting and stopping.
Whereas +/-1.0*C is good +/-0.3*C is better. Enjoy! :thumb: