What is the Temperature Range the Keychain Remote can operate in? Follow The optimal operating temperature for the Keychain Remote is 32° to 120°F. Facebook Twitter LinkedIn Comments 0 comments Article is closed for comments. Articles in this section Can I change the battery in my Keychain Remote? How can I tell if my system armed after I press a button on my Keychain Remote? What do I do if I am pressing the buttons, but the system isn’t responding? Can I check if my system is armed or disarmed from my Keychain Remote on my Customer Portal? What is the Temperature Range the Keychain Remote can operate in?