Capstone project query

is it alright to my iot microcontroller inside refrigirator i have doubt that it will get effected by the temperature inside the refrigirator.

It is safe to keep the BOLT iot inside the fridge but do not with a powerbank(sutaible temp-20 to 25 degrees).

Yes it is alright to keep the bolt iot device in the refrigerator along with the power bank. Keep a cloth below the device as well as below the power bank. Check if your power bank is properly charged before use. Although very very small amount of water will be there on the power bank due to condensation but it is alright .