lnstant reading; Quick measurement, get reading in 1 second. Adopt the latest algorithm with optimised temperature calibration function. Accurate and reliable;±0.2℃ High accuracy. Smart and lntelligent; One-button easy operation. Tri-color indicator light, display green, orange & red with fever alarm function. Memory function. Memory recall of 35 reading. Multi function design, can measure forehead/, room, object temperature. Switching between mute and un-mute. Switching between Fahrenheit and Celsius. Automatic shutdown and power saving. Model No. FC-IR200 Measurement range: Ear & Forehead:89.6°F-109.2°F(32.0°C-42.9°C) Object:0°C-100°C(32°F-212°F) Measuring accuracy: Ear & Forehead mode:±0.2°C/±0.4°F Object mode:±1.0°C/1.8°F Display LCD backlight Automatic shutdown 10s±1s Memory:Memory 35 groups of measured temperature. Indicator and Fever alarm Normal green:32°C≦T≦37.3°C(89.6°F-109.2°F) Low fever:37.4°C≦T≦37.9°C(99.3°F-100.3°F) High fever:38°C≦T≦42.9°C(100.4°F-109.2°F) Operational conditions Temperature:10°C-40°C (50°F-104°F) Humidity:15-95%RH,non-condensing Atmospheric pressure:86-106 kPa Battery 2*AAA Product dimension 36*42*153.5mm Packing size 46*46*168mm Full set weight 115g