Non-Contact Thermometers for Adults and Baby with

Our no touch thermometer for adults and babies has 2 modes: Human Mode & Object Mode. You can use this infrared thermometer to measure the temperature of human body or various objects such as milk, water, room. How to change temperature units from ℃ to ℉ permanently? 1.Hold "Set" Button for 3s until "F1" shows on screen. 2.Press "+" button to Switch the units from ℃ to ℉,immediately press "Set" button for 4 times until display off. Nice!