describe color: gold size: 130 mm Notes 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 observe that the thermometer shows clear pointer changes. For example: in the refrigerator, it takes longer to change slowly because the mechanical movement changes slowly. 2. Observe the humidity change: You can take a deep breath through the small hole at the bottom of the back of the product, you can clearly see the humidity indicator change upwards fall back after a while. 3. Note the atmospheric pressure change: Due to the different atmospheric pressure in different places, the display position of the pointer is also different, in some areas, the extremely low atmospheric pressure pointer may also be under the range above. beyond the beach. Atmospheric pressure changes more slowly. Typically, this change occurs 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 wait a few days. The black needle on the large dial is l atmospheric pressure needle the silver pointer is the contrast pointer. The Contrast Pointer function can be set to the same value. Then you can compare observe whether the atmospheric pressure has increased or decreased over a period of time. [Three-in-one weather station] This product is designed to measure parameters such as ambient temperature, air humidity atmospheric pressure accurately predict future weather changes based on changes in ambient temperature, humidity barometric pressure. High quality materialThe frame of the barometer is made of solid wood the case is also made of aluminum-magnesium alloy. It has a good finish is durable. This is a complete household weather meter. Exquisite decorationThe barometer is both a display a barometer, beautiful practical. Owning is like owning an outdoor barometer, hygrometer weather station. Easy to UseEasy to install, no plugs or batteries required, can be hung on the wall or placed on the counter, perfect for indoor outdoor wall decoration. Indoor outdoor use The barometer is suitable for all occasions, whether indoors or outdoors, also works well at an altitude of 3000 feet, so you can use it in many cases can use geographical areas.