Features: Handheld infrared thermometer with high performance and high accuracy.  Digital LCD display with backlight, convenient to read at night.  Optional temperature units: Celsius(°C) and Fahrenheit(°F).  Emissivity: 0.95 preset 0.10adjustable, long press "°C/°F" button to adjust.  This digital infrared thermometer can safely and accurately measure extreme temperatures in a wide variety of environments.  Note: this item is not suitable for body temperature testing.   Function: Easy one-hand operations;  LCD with backlight;  ON / OFF Switch;  Low battery indicator;  LED backlight system;  C / F temperature unit conversion;  Automatic Power-off after 7 seconds without activity;  Display hold;  Scan function;   Specifications: Measurement range: -50 ° C to 550 ° C (-58 ° F to 1022 ° F);  Accuracy: -50 ° C to 0 ° C (± 3 ° C), 0 ° C to 100 ° C (± 1.5 ° C), 100 ° C to 550 ° C (± 1.5%);  Repeatability: 1 ° C or 1% of reading;  Resolution: 0.1 ° C or 0.1 ° F;  Response Time: 500mSec, 95% response;  Emissivity: 0.95 Preset;  Distance To Spot Ration: 12: 1;  Spectral response: 8 ~ 14μm;  Storage Temperature: -20 ° C to 60 ° C (-4 ° F to 140 ° F);  Operating temperature: 0 ° C to 40 ° C (32 ° F to 104 ° F);  Operating Humidity: 10-95% RH non-condensing, up to 30 ° C (86 ° F);  Package Weight: 146g/5.1oz;  Package Size:15.6*8.8*4.3cm/6.1*3.5*1.7in;   Package List: 1*Thermometer