A PROFESSIONAL MEDICAL EQUIPMENT thermometer is specially for measuring body temperature, it can measure human ear and forehead temperature,it is suitable for medical unit and home use. Powered by 2*AAA batteries. Contact Forehead Thermometer(suitable for all ages) and Ear Thermometer(only for the child above 3 months), dual model makes you test result more accuracy. A maximum of 12 previous readings is available to help you track the changes of your body temperature. Just One-button operation,1 Second Measurement Time. Large display with backlit,very easy reading.Automatic off after 60 seconds for save batteries.