2020 Hot Selling LCD Display Infrared Thermometer Non-Contact Digital Laser Product Description Measure Distance 3-5cm Measure time 1-2s voltage supply; DC3V Accuracy 0.01°C Features. 1. Intelligent voice tri-color backlight alarm. 2. measurement is more accurate.as the technology 3. It is simple and easy to learn how to use it 4. It can store 32 sets of data measurements and easily record the changes in body temperature of the whole family 5. caring for the health of you and your family.