Technology has come a long way since the refrigerator has been invented. Together with the advancements in technology come many complications in Halacha. Whether it involves sensors, compressors, defrosters, or the good old shaila of the light bulb, a group of Rabbonim have strived to find a heter to all of these shailos that is 100% lechatchila to use.Ki Eshmerah Shabbos/The Shabbos Keeper:https://www.kosher.com/video/ki-eshmerah-shabbos
