ECHOO Macaron Barometer, Weather Station with Barometer and Hygrometer Thermometer
Description
Color: gold Size: 128 mm Tips for testing instruments: 1. Watch the temperature change: Put it in an environment with a large temperature difference from the room temperature for a while, and there will be obvious pointer changes when you watch the thermometer. For example: Put it in the refrigerator, because the mechanical movement changes slowly, it takes longer to change slowly. 2. Watch the humidity changes: you can take a deep breath at the hole at the bottom of the back of the product, and you will obviously see the upward change of the humidity indicator, and the indicator will fall back after a while . 3. Watch the air pressure change: Because the air pressure is different in different places, the display position of the pointer is different, and some areas may also encounter the situation that the pointer with very high air pressure. bass is below range and exceeds range. Atmospheric pressure changes more slowly. Generally, the change is evident when the weather changes from
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