Color: gold Size: 128mm Tips for testing instruments: 1. Observe the temperature change: Place it in an environment with a large temperature difference from the ambient temperature for a certain period of time, and there will be obvious display changes when you look at the thermometer. For example: Put it in the refrigerator, because the mechanical movement changes slowly, it takes a longer time to change slowly. 2. Observe the humidity change: you can take a deep breath in the hole at the bottom of the back of the product, and you will obviously see the humidity indicator change upwards, and the indicator will fall again after a while. 3. Observe 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 low is below the range and exceeds the range. The atmospheric pressure changes more slowly. Generally speaking, the change is obvious when the weather changes from sunny to rainy or from rainy to sunny. Therefore, if you do not see the air pressure needle move, turn the comparison pointer to the same position as the air pressure pointer, then be patient and wait a few days. The black pointer on the large dial is the air pressure pointer, and the silver pointer is the contrast pointer. The contrast pointer function can be adjusted to the same value. Then you can compare and see within a certain period of time whether the air pressure has increased or decreased. [Three-in-one weather station] This product is used to measure ambient temperature, humidity, atmospheric pressure and other parameters, and accurately predict future weather changes based on changes in ambient temperature, humidity and atmospheric pressure. [High-quality material] The barometer frame is made of solid wood, and the shell is also made of aluminum-magnesium alloy. It has fine workmanship 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 equivalent to owning an outdoor barometer, hygrometer and weather station. [Easy to use] The installation is very convenient, no sockets or batteries are needed, and it can be hung on the wall or placed on the counter, which is very suitable for indoor/outdoor wall decoration. [Indoor and outdoor use] The barometer is suitable for all occasions, whether indoors or outdoors, and can work normally even at an altitude of 3000 feet, so you can use it in many geographical areas.