In industrial production in many places to use liquid devices to contain liquid objects, such as oil, water, beverages and so on. In the standardization of the production of liquid is often closed or semi-closed state is not conducive to the human eye recognition. Liquid level detection device is extremely important. SIKUN SCB, SCF, SCR capacitive proximity switches and ultrasonic sensors can help you solve this problem, so that the factory can be standardized, worry-free safety in production.