| 摘要 |
The present invention is formed to measure water level existed in soil in a flower pot and to visually or auditory deliver to outside in order to intuitively recognize time to water the flower pot. The present invention comprises: a sharp lower ended oval shaped main body in order to simply put into soil inside the flower pot; an LED lamp which is formed in a heart shape in the upper part of the main body to express height of liquid by stages, solar cell panels installed in front center of the main body; a power switch equipped in the upper end of the solar cell panel; a speaker located in the rear upper part of the main body; a control unit equipped in the lower end of the speaker; a power unit located in the lower end of the control unit; and a sensor unit installed in the lower part of the main body in multi-step. The present invention: can inform the appropriate watering time by measuring water level inside a flower pot in which plant is grew so that a user can measure the water level of the flower pot by putting the device into a flower pot which will be watered and directly check the watering time visually or auditory and easily recognize watering time; has a simple installation method which inserts the device into soil of the flower pot; and can measure without being limited by depth of soil in the flower pot by forming the sensor unit in multi-steps. Therefore the application range is wide; electric power costs can be saved by using the solar cell panel as long as the weather is not cloudy or rainy; and efficiency of power can be maximized. |
