Features: Small and Portable: Its size is 1.9 12.5cm 0.75 X 4.92inch and it weighs only 29g 1.0oz (without battery), just like a lipstick !! Quick Measurement and Accurate: 1 second quick measurement, faster than most of other normal forehead thermometers. Its accuracy is up to + -0.2 0.4 in body temperature range among 35.0 and 42.0 (95 and 107.6 ). 3 Modes available: Body temperature, Surface temperature and Room temperature. 30 Records: It stores recent 30 temperature records and you can easily find these records in records mode. Non-contact Design: Best measuring distance is 1-3cm 0.4-1.18 away from forehead. Intelligent Temperature Warning: When 32 89.6 , it displays Lo . When 43 109.4 , it displays Hi . At the same time, it rings Bi Bi for warning. 2 Temperature Unit: LCD Display: Clear display without dazzling light.