Alloy aluminum outer ring, EU standard movement, the dial made of imported aluminum magnesium alloy, PMMA plastic lens, adjusting wheel, multi-function display, large display panel with dual-scale weather change logoReadings 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 time.Wide Applicability: Generally applicable to ships, factories, laboratories, families.Easy to Install : lightweight and easy to install, suitable for hanging or placed on a surface.The product is used to measure the temperature, humidity, atmospheric pressure and other parameters in the environment. It accurately predicts the future weather changes according to the changes of ambient temperature, humidity and atmospheric pressure. It is a full-featured household weather forecast meterMechanical thermometer hygrometer Barometer, no battery requiredParameter:Name: Barometer,Moisture meter, ThermometerMaterial: metal+plasticMeasuring range: 720-800hPa,-30℃—50℃，0-100%Resolution: 1C, 2% RH, 1hPaDiameter: about 72 mm/2.83inThickness: about 33mm/1.3inEmbedding diameter:56mm/2.20inEmbedding height: 20mm/0.79inAlloy aluminum outer ring, EU standard movement, the dial made of imported aluminum magnesium alloy, PMMA plastic lens, adjusting wheel, multi-function display, large display panel with dual-scale weather change logoReadings 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 time.Wide Applicability: Generally applicable to ships, factories, laboratories, families.Easy to Install : lightweight and easy to install, suitable for hanging or placed on a surface.The product is used to measure the temperature, humidity, atmospheric pressure and other parameters in the environment. It accurately predicts the future weather change