Intelligent use of magnets to tell you no water vase

Design is generally pretty narrow mouth of the vase, and the bottle is not transparent, with eyes to see not particularly easy. This vase is no need to see you again do not need to tell you need to add water, it works is simple: sex magnet repulsion.

The bottom of the vase and the base of the pole magnets is the same, mutually exclusive, when the weight of the water bottle is large enough, the bottle pressure is greater than the repulsive force of magnets, vases will be placed on the base, but with the water reduced repulsion magnet vase will be elected up, so that the water in the vase can clear out.