This product measures temperature, humidity, and atmospheric pressure. It features a barometer, thermometer, and hygrometer in one device, offering 3-in-1 functionality that is economical and practical. Designed for accurate environmental monitoring, it has a standard measuring range and can assist in observing weather trends. The unit is lightweight and easy to install, suitable for wall mounting or placement on a flat surface. Its simple and elegant design enhances user comfort. 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 inches Thickness: 4.1cm / 1.61 inches Quantity: 1 piece Note: Please allow 1-3mm error due to manual measurement. Ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package Contents: 1 x Thermometer Hygrometer Barometer