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-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 =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)