["brand new and high quality\nFeatures:\n1. Precision temperature sensing hairspring; Precision wet hairspring; Precision gear transmission structure barometer movement; 1 second precision clock movement; Metal pointer. \n2. Readings Comparison: The contrast pin on the lens is used to compare readings to see if atmospheric pressure rises or falls over a certain period of for time. \n3. Wide Applicability: Generally applicable to ships, factories, laboratories, families. \n4. Easy to Install is lightweight and easy to install, suitable for hanging or placed on a surface. \n5. Thermometer Hygrometer Barometer Clock only, other accessories demo in the picture is not included.\n\nSpecification:\nThermometer: -30 ~ 50℃, accuracy: +/- 2℃\nHygrometer: 0 ~ RH\nAccuracy: +/- 5% RH (40 ~ 70% RH)\nBarometer: 950 ~ 1070hPa\nAccuracy: +/-5hpa (980~1040hPa)\nMaterial: Brass for Shell, Plastic Bottom for Shell, Acrylic Plastic Lens\nFor detail sizes as follows:\nThermometer: diameter: 98mm/3.86in, thickness: 33 mm/1.30in\nHygrometer: diameter: 98mm/3.86in, thickness: 33mm/1.30in\nBarometer: diameter: 98mm/3.86in, thickness: 36mm/1.42in\nClock: diameter: 98mm/3.86in, thickness: 32mm/1.26in \nColor: As pictures shown\nQuantity: 4pcs/set\n\nNote:\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Contents:\n1 x Thermometer \n1 x Hygrometer \n1 x Barometer\n1 x Clock"]