The kSafe works in some refrigerators. As refrigerators vary in terms of condensation, temperature, and other factors, it can impact the timing mechanism and batteries. You may attempt to use the kSafe in the refrigerator, but know that it may damage the unit and would void the warranty.
The kSafe will not work in the freezer. The condensation from the freezer may damage the electrical components and will void the warranty. If you need to lock an item in the freezer, we recommend using a key-locking bag and then placing the key in the kSafe.
You may have come across this item in The Kitchen Safe Shark Tank debut, and since then, the makers have provided a larger size - big enough to store an iPad or other tablet.