Description: Wall-mounted thermometer non-contact infrared measurement. Automatically reads a body temperature within ±0.2 degree accuracy and and display in 0.5s. It has an intelligent alarm function. Depending on the measured body temperature, the thermometer will respond differently. When the body temperature is lower than 37.3°C, it will turn on a green light, and when the body temperature is higher than 37.3°C, it will turn on a yellow light and give an alarm. The red light will be on at 38.1°C and the alarm will continue. Exteral 18650 rechargeable battery (not included) or DC 5V input by USB cable Digital screen display, large temperature digits for convenient reading. Easy to switch unit of °C/°F. Suitable for home office,airports, schools, hotels, shopping malls, supermarkets,restaurants, hotels,bus, rail stations,convenience stores, factories cafe,bar,etc. Specification: Material:ABS Accuracy: ±0.2 degrees Abnormal automatic alarm: 0.5s Measuring distance:5-14cm Measuring temperature: 0°C-40°C Operating Environment: Temperature 0°C-45°C Operating Environment: Temperature 0°C-45°C Size:Approx.153x103x43mm/6.02x4.06x1.69inch Language:English Package Includes: 1 Piece Wall Mounted Thermometer 1 Piece USB Cable Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.