Liquid level indicator in plant containers determines moisture or liquid level in plant container by electronic methods, indicates it using optical light elements or audible sound signal

摘要

The device determines (6) the moisture or liquid level in the plant container by electronic methods and indicates (2,3) it using optical light elements or an audible sound signal. Solar cells (4) alone or in combination with a battery provide the current supply to the electronics. The electronic circuit is designed for very low current consumption.