sart learning this, arduino thermocouple
https://www.google.ca/search?q=arduino+thermocouple&rlz=1C1AFAB_enCA475&source=lnms&tbm=isch&sa=X&ved=0ahUKEwisj4_45PTaAhWo6IMKHef4BjAQ_AUICigB&biw=1440&bih=784