who ever in invented the toilet water closet is really a genius😊😳.

Non-contact liquid level sensor is used to monitor the liquid level height and give a switching signal for automatic water filling and alarm. The non-contact liquid level sensor is a sensor used to measure the liquid level height of liquid or solid materials. It can achieve non-contact and pollution-free measurement without directly contacting the liquid level, thus avoiding almost all common problems of liquid level sensors. When the liquid level sensor detects that the liquid level has reached