The product is a professional thermometer for measuring the forehead temperature of the human body. Be notified when measured temperature is higher than normal body temperature or when body temperature goes beyond a temperature a body handle. Record reading results up to 32 measurements and recalls them anytime. Measuring Modes:Non-contact Digital Infrared Forehead thermometer can measure human and objects,temperature ranging from 89.6℉to 109.4℉/ 32℃to 43℃for human,32℉ to 140℉/ 0℃ to 60℃ for objectsEasy Temperature Reading:Taking your forehead temperature with this thermometer is as simple as pointing,pressing a button.can show readings in Celsius or FahrenheitVery Accurate measuring:Ideal for forehead readings and have very small error margin,It is actually more accurate than standard mercury thermometersMeasuring Quickly: Response time: ≤1, readings on the display for 15 seconds after measuring.measuring distance is 1-cmNon-contact Infrared Measuring: infrared technology makes this thermometer cam measure the surface temperature of objects.can't measure the internal temperature of an object