Innovative antimicrobial thermometer Alfacheck Antimicrobial ΑΤ400 by Karabinis Medical, is the first thermometer in the world using an alloy of antimicrobial Cu+. It works just like standard digital thermometers regarding the measurement of fever, but has a very important and very useful difference: it contains antimicrobial copper, which reduces microbes and minimises the transmission of diseases among humans.