Specifications Measuring Distance: 1cm - 5cm(0.4-2in) Measuring Site: Forehead Accurancy: body mode:±0.2℃/±0.4℉ surface mode:±2.0℃/±3.6℉ Features of Digital Thermometer Forehead 1.Easy Operation: Hand-held design, easy operation, one-button automatic temperature measurement, get reading in one second. 2.Multifunction: This infrared thermometer for fever can measure the temperature of the room, body, and food. And can record 50 sets of readings to track your physical condition. 3.℃ switch to ℉: Press and hold the \"SET\" button for about 3 seconds, then F1 is displayed, and the ℃ / ℉ icon starts to flash. At this time, pressing \"MEMO\" or \"MODE\" button can complete the switch between ℃ and ℉. 4.Mute and Auto-Power off: Our digital thermometer not only have mute function, but also have automatic power off function, after 16 seconds of unused, it will automatic power off.