Features: 1. With a uilt-in infrared temperature sensor the thermometer can read a person's body temperature within short distance from the center of the forehead without physically touching the person. 2. An ultra-sensitive infrared sensor collects more than 100 data points per second while distance and environmental sensors work together to account for other variables ensuring maximum accuracy every time the temperature is taken. 3. With an intuitive single-button control design the thermometer reads and shows the temperature in just one second on its easy-to-read extra-large LED display even in total darkness. When the temperature is read the device gives a gentle vibration notification to the holding handno beeps or buzzes. 4. This thermometer is designed for all ages ranging from babies and toddlers to the elderly. An ideal choice for at-home use and for hospitals hotels schools and other public or private establishments. 5. If you are not satisfied with our product. Feel free to contact us we will solve your question as soon as possible. Specifications: Measurement Range: 32.0-43.0 Permissible Error Range: 0.3 Within The Range Of 32.0-34.9 0.2 Within The Range Of 35.0-42.0 0.3 Within The Range Of 42.1-43.0 Operating Environment: Temperature 10-40 Humidity 85% Measurement Time: Less Than 2 Seconds Measuring Distancet: 1-3cm Product Size: 142*89*38mm Automatic Shutdown: Within 30s Memory Data: 50 Groups includes: 1PC*Thermometer "