Frost-resistant smart plugs
prices on 21 model— smart sockets and extension cords that allow operation at temperatures below zero. The specific minimum temperature may be different, it's ok to clarify it separately; however, if the device is planned to be used in an unheated room or other similar conditions, it is definitely worth choosing an option from this category.
A typical example of the use of such devices is a garage or workshop in a private house. During a long absence, when the room is not in use, it can not be heated; and some time before arrival, you can remotely turn on a smart socket with a heater connected to it and arrive in an already heated room with comfortable conditions.