Color: gold Size: 128 mm Tips for testing instruments: 1. Watch the temperature change: Place it in an environment with a large temperature difference from the ambient temperature for a period of time, and there will be obvious pointer changes when you look at 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 humidity indicator change upwards, and the indicator will fall again after a while . 3. Watch the change of air pressure: 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. Atmospheric pressure changes more slowly. Generally, the change is evident when the weather changes from sunny to rain or from rain to sunny. Therefore, if you do not see the air pressure needle moving, please turn the comparison pointer to the same position as the air pressure pointer, then be patient Wait for a few days. The pointer The black of the large disc 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 you can compare and watch within a certain period of time whether the atmospheric pressure has increased or decreased. [Three-in-one weather station] This product is used to measure environmental temperature, humidity, air pressure and other parameters, and accurately predict future weather changes based on changes in temperature, humidity and environmental air pressure. [High quality material] The Barometer frame is made of solid wood and the shell is also made of aluminum-magnesium alloy. It has a fine 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 equivalent to owning an outdoor barometer, hygrometer and weather station. [Easy to use] The installation is very convenient, no plug or battery is 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 indoor or outdoor, and can work normally even at an altitude of 3000 feet, so you can use it in many geographic areas.