Descriptions:                  This product is used to measure the changes of the parameters of the temperature, humidty, atmospheric pressure. According to the variation tendency of the environment's temperature, humidty and air pressure, it can predict the weather accurately. Thus, it can be a multifunctional household weather forecasting instrument.                           Features:                  With barometer, thermometer and hygrometer, 3 in 1 multifunction, economical and practical                  Standard measuring range, predict the weather more accurately                  Lightweight and easy to install, suitable for hanging or placing on a surface                  Simple and elegant design make you more comfortable when using it                           Specifications:                  Measurement Range: -30~50℃; 0~100%RH; 970~1050hPa                  Resolution：1hPa, 1℃, 2%RH                  Accuracy: ±2℃，±5%RH(30~80%RH),±5hPa(970~1040hPa)                  Diameter: 13cm/5.12"                  Thickness: 4.1cm/1.61"                  Quantity: 1 Pc                           Note:                  Please allow 1-3mm error due to manual measurement.pls make sure you do not mind before you bid                  Due to the difference between different monitors, the picture may not reflect the actual color of the item.                  Thank you                           Package Contents:                  1 x Thermometer Hygrometer Barometer