Size: Large Storm Glass Weather Forecaster: What is a Fitzroy Storm Glass and how does it work? According to Fitzroy's findings, this glass barometer forecasts the weather based on changes in the formation of crystals inside the column. If the liquid is clear, the weather will be bright and clear. If the liquid is cloudy, the weather will be cloudy as well, perhaps with precipitation. If there are small dots in the liquid, humid or foggy weather should be expected. A cloudy glass with small stars may indicate thunderstorms. If the liquid contains small stars on sunny winter days, expect snow. If there are large flakes throughout the liquid, it should be overcast in temperate seasons or snowy in the winter.Crystals at the bottom indicate frost. Threads near the top mean that it will be windy. Item Weight:1.9 pounds Shipping Weight : approx. 1270 grams (including packaging) Size : approx. 11 x 20.5mm /4.3 inches*8.1 inches Materials: borosilicate glass, compound liquid, water, ethanol, natural camphor Not intended for use as accurate weather forecasting device Key Features: 1. Time to crystallize depends on your environment. Newly installed It takes one to two weeks and to stabilize; 2. Storm glass reacts to changes in temperature, especially; 3. Where the air conditioner is not exposed to direct, where prone changes in temperature, such as the entrance is recommended for the installation site; 4.;Please do not install the unit in direct sunlight,or heating and air conditioning to avoid deterioration of the crystal!!! Not intended for use as accurate weather forecasting device
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