Non-contact measurement?no cross infection. Easy-to-use design takes an accurate temperature reading in a second. Provide two temperature modes ? and ?. Three testing modes to measure the body temperature, environment temperature, and other object temperature. Backlight LCD display. Adjustable fever level, fever alarm can be turned On/Off. Temperature calibration function. Memory recalls last 20 temperature readings. Good for all ages. Measurement range: body temperature:32.0?~42.2? object temperature:0.0?~100.0?