The Braun No Touch Infrared Thermometer BNT100 is a premium non-invasive thermometer. The design and user interface are geometric yet soft conveying the thermometer s gentle and non-invasive nature. The angled sensor head has been ergonomically optimized to fit various positions. The normal temperature range will display a green backlight color and a single long beep for 0.4 seconds will be heard. A fever temperature range will display a yellow backlight and a single long beep for 0.4 seconds will be heard. A high fever range will display a blinking yellow backlight and 10 short beeps will be heard.