Features: Non-contact infrared measurement, reliable to use. 1 second temperature measurement. It can also measure object temperature. Memorization of the last 32 groups of measurement data for analysis reference comparison. Backlight LED digital display, clear display. 3 colors backlight display informs you different situation of body. Humanized handle, fits the palm well, Comfortable to grip, easy to operate with one hand. Specification: Model: GP-300 Type: Thermometer Color: Grey/Purple/Green(Optional) Material: ABS Input voltage: D C 3 V Power Supply: 2 * 1.5V AAA Batteries(NOT Included) Measuring distance: 30mm-50mm Measuring hour: 1 second Auto power-off: Approx. 15 seconds Display range:32-42.9 Working temperature: 16-35 Working humidity: 85% Storage temperature: 0-50 Memory groups: 32 Item weight: 104g/ 3.7oz Package size: 16.5 * 10.7 * 4.7cm/ 6.5 * 4.2 * 1.9in (Length * Width * Height) Package weight: 141g / 5.0oz Package List: 1 * Thermometer 1 * User Manual (English)