In normal, day to day life, I think it would have little value.
The use-case I am envisioning here is: you have a high value store of frozen items (meat, etc.) and you leave your home for 20 or 30 days ...
When you get back, the freezer is running nicely and everything is frozen and things look great - but what if there were a 3 or 4 or 5 day power outage in the middle of your trip that thawed things out just enough to spoil ?
Or what if there were one or more power outages (or brownouts) that you were aware of that were not, in fact, long enough to ruin your stored food ... but how would you be sure ?
If you had a time view of freezer temps you could make those determinations easily.
In normal, day to day life, I think it would have little value.
The use-case I am envisioning here is: you have a high value store of frozen items (meat, etc.) and you leave your home for 20 or 30 days ...
When you get back, the freezer is running nicely and everything is frozen and things look great - but what if there were a 3 or 4 or 5 day power outage in the middle of your trip that thawed things out just enough to spoil ?
Or what if there were one or more power outages (or brownouts) that you were aware of that were not, in fact, long enough to ruin your stored food ... but how would you be sure ?
If you had a time view of freezer temps you could make those determinations easily.