Main Features: - Smart HTD8808C gun thermometer- Infrared detecting technology， non-contact， safer and healthier- Auto power-off after 18 seconds idle time， energy saving and environmental protection- Temperature unit conversion function - Deg.C / Deg.F- 0.5 seconds rapid measurement- Powered by 2 x 1.5 AAA battery ( not included )- With 3 colors backlight， high fever alarm functionGreen: 34.0 - 37.3 Deg.C， safetyOrange: 37.4 - 38.0 Deg.C， low feverRed: 38.1 - 42.9 Deg.C， high fever alarm will open automatically- Automatically remember the latest 50 groups measurement data- Perfect for your families， especially for your kidsSpecifications: - Measurement range:Body temperature mode: 34 - 42.9 Deg.CSurface mode: 0 - 100 Deg.C- Measuring accuracy0 - 33.9 Deg.C: 2 Deg.C34.0 - 34.9 Deg.C: 0.3 Deg.C35.0 - 42.0 Deg.C: 0.2 Deg.C42.1 - 42.9 Deg.C: 0.3 Deg.C43.0 - 100 Deg.C: 2 Deg.C- Measuring time: 0.5 seconds- Sensing distance: 5 - 15cm- Display accuracy: 0.1 Deg.CInstructions: 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 Model : 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 HTD8808C Infrared Gun Thermometer Non-contact IR Temperature Measurement Device，1 x English User Manual