Gravity: Capacitive Non-contact Liquid Level Sensor (3mm TR)

The article discusses the innovative non-contact liquid level sensor that triggers when liquid levels fall below a sensor attached to the outer surface of a non-metal container. Unlike traditional sensors, it does not require immersion, thus preventing liquid contamination and reducing sensor wear. It is characterized by sensitivity, stability, and the ability to directly drive a relay with an output current of up to 100mA.