681747001187 -The Healthy Living Instant Ear Thermometer reads temperature by measuring the infrared heat generated by the eardrum and surrounding tissues. This thermometer features Accu-Fast technology to scan the area taking 12 measurements in one second before displaying the highest temperature reading. Our product is designed with advanced infrared and ambient temperature compensation technology for fast and accurate body temperature readings. Has a unique built-in alarm to warn users of a higher than normal temperature.