I have been looking on the temperature specifications of the components I use in the Magnetic Switch. It turns out that I’ve been very careful when I determine the operating temperature range for the Switch (-10C to +50C). Because all the components can handle down to minus 40 degrees Celsius. The new operating temperature range is (-40C to +50C). So if there is someone who wants to go out and fly in extreme cold. They should not worry about the functionality of my magnetic switch. Remember to bring warm clothes.