Key Fob max temperature threshold for storage

[supernova]

I am thinking of hiding the key fob in sleep mode in the LC and exclusively using the remote app digital key and emergency key, if the app starting to act funky.
The question is , here in Texas the summer temperatures get very high and temperatures in the vehicle baking in the sun are very high. What type of temperatures can the key fob withstand?

 

[Nuke]

I would not be concerned unless the key fob was in the direct sun. Besides, think of the heat the electronics under the hood are exposed to. In this regard, "back in the day" our 2005 4Runner had all the engine electronics placed inside the cabin behind the dash. Much more reliable in desert heat in my opinion.

 

[EOD Guy]

I had mine hidden in the interior for many, many months, no issue.