Product Feature:Thermometer for adults / babiesInfrared thermometer for fever Forehead Thermometer safer and healthier, Digital LCD Infrared Forehead Thermometer is very easy to use, 1 second rapid measurement temperature.You just point and press the trigger and It will turn on automatically.?As long as you keep the trigger press it will continue measuring the temperature and once you release the trigger it will display the temp for a 30 seconds and then it will shut down automatically.Our Digital Thermometer screen is easy to read. It's backlit so you can use it at night and you can change between Fahrenheit and Celsius .To Convert from °F / °C Press the green button to turn on and then you just press "MODE" button for 4 Seconds to switch °F / °C. This infrared thermometer quickly reads temperatures and provides a clear display in Fahrenheit or Celsius. Specifications:Emissivity: 0.1~1.0Distance Spot Ratio: 12:1Laser target pointer: CircleResponse Time: 0.5 secondDimensions: 6.4 x 3.8 x 1.3'Power: 2* AAA Batteries ( not Included)Package:1* User Manual1* Temperature GunWarm Note:1) Please make sure that there is no hair, sweat. make up or hat covering before measuring.2) When forehead sweats or other reasons cause the forehead temperature not reflect the body temperature normally, please measure aiming at behind earlobe, and make sure that there is no hair, sweat, cosmetics or hat covering.3) Human body's temperature changes at different time of the day, and is also affected by other external factors, such as age, gender, and skin color etc.