The Product Features of FDA Thermometer1. Dual mode use(Forehead or ear detection)2. 1 second measurement time3. Fever warning4. 20 readings memory recallHow to get accurate reading temperature?1.Make sure the position of the measurement is correct, don?t measure the place which is near to eyebrows ,just test forehead , only that?s correct position.2.Please don?t press the forehead or drill into the ear hole for long time(more than 5s) to measure multiple temp ,the temperature measured will be lower, that will lead to inaccurate reading.3.Each time when you measure the temp, you should press the forehead or drill it into the ear hole for 2-3s,and then press the corresponding button until a beep that means it completes successfully to the first measurement.Specifications:Power: 2 x AAA BatteriesOperating Conditions: 50°F to 104°F (10°C to 40°C); ?80%RH, non-condensing Atmospheric Pressure: 860 hPa to 1060 hPaMeasurement Range: 32°F-212°F (0.0°C-100°C)Measurement Resolution: 0.1°F (0.1°C)Package List:1 X Forehead and Ear Thermometer1 X Portable Case1 X User ManualNote:Ear test mode is only suitable for children over 3 months. Please read the included instruction manual carefully to avoid any misuse and keep it for future reference. It is normal to obtain a slight variation in temperature readings when taking temperatures from different parts of the body.This device is not intended to substitute any advice given by a physician,pharmacist, or other licensed health-care professional. You should not use this product for self-diagnosis or for treating a health problem . Contact your health-care provider immediately if you suspect that you have a medical problem.