1.No Mercury, passive infrared receiver, without radiation. 2.Large LCD screen. 3.Measure way: put into the ear, and get accurately measure. 4.Measurement time: 2 ses ±1 ses. 5.Memory group: 9 groups memory function. 6.Measure temperature range: 34~42.2â??. 7.Degrees Celsius / Fahrenheit unit conversion 8.Microcomputer automatic detection technology.