Product Name: Hot Selling Non-Contact Digital Thermometer Laser Infrared Thermometer Display: Digital Type: Infrared Thermometer Effective Distance: 1-5cm Memory: 32 Sets Reading Recall Automatic Sut off: in 15 Seconds Power Supply: DC 3V 2AAA Alkaline Battery Trademark: No Transport Package: Box Specification: 60*28*37mm Origin: China HS Code: 9025199010 Product Description Hot Selling Non-Contact Digital Thermometer Laser LCD Display Laser Infrared ThermometerErrors and troubleshootingSymbolMeanReasonH1High TemperatureThe temperature over than 42.9CL0Measuring Temperature too lowThe Temperature than 34CErrWorking Environment out of RangeWorking Environment lower than 16C or over 35CView and Dispaly infoUser Setting1. System settingPower on and then long press "Setting".Function Code F1: Press+/-to set Cor FFunction Code F2: Fever Alarm, press+/-to setting.Function Code F3: Buzzer switch, press+/-to setting.2. Memory Settingsupport to storage 16 groups' newest Fever data.Power on and short press+/-to check the storage dataPackagePayment and Transportation