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 than37.3 °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-contact Effective distance: 30mm-50mm Measure Range(Human body): 32-42.9(89.6-109.2) Measure Range (Objects’ Surface): 0-100(32-212) Accuracy of Body Temperature <=35 or >=42: +/-0.3/0.54 Accuracy of Body Temperature between 35 & 42: +/-0.2/0.4 Accuracy of Objects’ Surface: +/-1/1.8 Working Condition: 16-35(60-95,Humidity≤ 85% Memory: 32 memory records; 1 set reading recall Storage condition: -20~55,Humidity≤ 85% Automatic shut off: in 20s if no any operation Batteries: DC3V 2pcs AAA DC3V (not included) Size: 8cm x 5cm x 15.6cm Net Weight: about 119g ( without battery & package)