describe Color: gold Size: 132mm Advice on test equipment: 1. Observe the temperature change: put it in an environment with a large temperature difference from the room temperature for a while, and observe that the thermometer will have obvious pointer changes. For example: in the refrigerator, because the mechanical movement changes slowly, it will take longer to change slowly.2. Observe the humidity change: you can take a deep breath at the small hole at the bottom of the back of the product, and you can clearly see that the humidity indicator changes upward, and the indicator will fall back after a period of time.3. Note the change of atmospheric pressure: Due to the different atmospheric pressure in different places, the display position of the pointer is also different, and some areas may also encounter the situation where the pointer with extremely low atmospheric pressure is below the shore and beyond the shore. Atmospheric pressure changes more slowly. Generally, this change is evident when the weather changes from sunny to rainy or from rainy to sunny. So if you don't see the barometric needle moving, turn the comparison needle to the same position as the barometric needle and wait a few days. The black pointer on the large dial is the atmospheric pressure pointer and the silver pointer is the contrast pointer. The contrast pointer function can be adjusted to the same value. Then one can compare and observe whether the atmospheric pressure has increased or decreased over a period of time. [Three-in-one Weather Station] This product is used to measure parameters such as ambient temperature, humidity and air pressure, and accurately predict future weather changes based on changes in ambient temperature, humidity and air pressure.[High-quality material]The frame of the barometer is made of solid wood and the case is also made of aluminum-magnesium alloy. It has a good finish and is durable. This is a complete household weather meter.[Exquisite decoration]The barometer is both a display and a barometer, beautiful and practical. Owning it is like owning an outdoor barometer, hygrometer and weather station.[Easy to use]Easy to install, no plugs or batteries required, can be hung on the wall or placed on the countertop, perfect for indoor and outdoor wall decoration.[Indoor and outdoor use ] The barometer is suitable for any occasion, whether indoor or outdoor, and works well even at an altitude of 3000 feet, so you can use it in many geographies.