Non-Contact Infrared Forehead Thermometer for Baby, Adult, Child, Surface of Objects, with Memory Function, Color Alarm, Sound Setting, Accurate +/-0.2/0.4 2 Modes available: Body temperature and Objects Surface temperature Optional Displays: / Accurate: Body Temperature Range 32-42.9(89.6-109.2) with accuracy up to +/-0.2/0.4; Objects Surface Temperature Range 0-100(32-212) with accuracy +/-1/1.8. 3 Backlight Alarms: Green, Yellow & Red. When the measurement result is lower than 37.3 C, the LED is shown in green. When the measurement result is between 37.3 C and 38.3 C, the LED is shown in yellow and there is a beeping prompt.When the measurement is higher than 38.4 C, the screen will be shown in red with a beeping signal. Un-mute & mute modes: Press + to switch on / off sound.SPECIFICATION:Measurement method: Non-contactEffective distance: 30mm-50mmMeasure Range(Human body): 32-42.9(89.6-109.2)Measure Range (Objects Surface): 0-100(32-212)Accuracy of Body Temperature =42: +/-0.3/0.54Accuracy of Body Temperature between 35 & 42: +/-0.2/0.4Accuracy of Objects Surface: +/-1/1.8Working Condition: 16-35(60-95,Humidity 85%Memory: 32 memory records; 1 set reading recallStorage condition: -20~55,Humidity 85%Automatic shut off: in 20s if no any operationBatteries: DC3V 2pcs AAA DC3V (not included)Size: 8cm x 5cm x 15.6cm Net Weight: about 119g ( without battery & package)