VIDEO PRODUK : youtube.com/watch?v=QG1AnkyiazY Specification Name : Infrared Electronic Thermometer Model : WME-168 Sensor : Thermopile type Minimum index value : 0.1°C Accuracy of measurement : Forehead measurement model +/- 0.2°C (35.0°C - 42.0°C) +/- 0.3°C (32.0°C - 34.9°C) Surface measurement mode +/- 0.3°C, In the range of 22.0°C - 42°C. Beyond this range is +/- 2°C or +/- 4% (percentage of actual temperature), whichever is greater Use Period : 3 Years Power Supply : DC 3.0 V, two number seven batteries Power : 0.018w Motor Protection : Internal Power Supply Use The Side : Indoor