Quick and Non-contact Measurement The infrared thermometer can get the body temperature reading in one second while keeping a distance 3-5 cm (1.2-2 inches) from the forehead of the human body, which can accurately and quickly measure body temperature and avoid risks. Fever Warning and Three-color Display The forehead thermometer has an alarm sound. When the temperature is abnormal, a buzzer will sound to remind you. In body mode, the forehead thermometer has three different background colors to show what stage your temperature is at, so that you can better monitor your health: Green (32.0-37.4), Orange (37.5-37.9), Red (38.0-43.0). 2 in 1 Mode The infrared thermometer can be used to measure body temperature of babies, children, and adults, as well as for measuring the temperature of room surfaces, water, milk, and other objects. One instrument can meet multiple needs. Professional Thermometer This non-contact thermometer uses infrared technology to quickly and accurately obtain the temperature of the human body or objects. You can toggle between Celsius and Fahrenheit. The accuracy of the thermometer is 0.2C / 0.4F. Memory Mode and Auto Power Off The infrared thermometer can store 40 readings for easy recording and viewing at any time. Additionally, the thermometer is energy-saving and will automatically shut down 13 seconds after you stop using it, extending battery life.