The Baumer CFAK 12P3140/KS35L capacitive sensor is designed to detect the level of electrically conductive liquids in grounded containers. It features a PNP output, a nominal sensing distance of 10-30 mm, and a switching frequency of <35 Hz. The sensor is made of POM material and has an IP67 protection class, making it suitable for harsh environments. It can be mounted non-flush and is short-circuit and reverse polarity protected. The active surface of the sensor must be in direct contact with the conductive liquid to detect its presence.