"nstructions: Function buttons- Power buttonDetecting and power on functions- Mode conversionPress the MODE button to convert the body temperature mode / surface mode- SET / UP / DOWNPower on the thermometer， press the SET button， LCD will display F1 ( default setting ) - F2 ( temperature unit conversion ) - F3 ( alarm setting ) - F4 ( on / off buzzer )， and press the UP / DOWN button to adjust the setting Brand: TAISHENGModel : TAISHENG HTD8808CColor : WhiteFeature: C/F display selection， Backlight display， Auto-power off， Low power indicationType : Food Thermometer， Body Thermometer， Outdoor Thermometer， Indoor Thermometer， Kitchen Thermometer， Industrial ThermometerMeasurement pattern : Non-contact (Infared)Response Time: 0.5 secondsC/F Display Selection: YesAuto-power Off: YesLow Power Indication: YesOperating temperature : 5 - 40 Deg.CStorage temperature : - 20 - 55 Deg.COperating Humidity: Less than or equal to 85%Operating Altitude: Less than or equal to 85% Package weight: 0.209 kgProduct size (L x W x H) : 15.2 x 8.5 x 4.3 cm / 5.97 x 3.34 x 1.69 inchesPackage size (L x W x H) : 18 x 11 x 7 cm / 7.07 x 4.32 x 2.75 inchesPackage Contents:1 x Infrared Gun Thermometer 1 x English User Manual